Application of Metal Powder Injection Molding in Medical Device

Mould level determines the quality level of medical device products. It usually requires a large number of manufacturing cost and time. To this a U.S. company developed a solution that is taking metal powder injection molding technology to achieve desired mould surface. Through internal injection machine inject the same material into mold cavity to shape products finally. Abroad has taken 3D injection molding technology to help medical device manufacturers launch product more quickly, and can save 70% cost. Using 3D printed injection mold to make medical device prototype can save 95% time and reduce about 70% cost of traditional mold.

http://www.zcmim.com/article/metal-powder-injection-molding-aompm_1.html

Special Shape Gear Structure

Special shape gear is the most important part for transmission mechanism, which belongs to large complex powder metallurgy structural part and net weight can reach 1320g. Because of large size and complicated shape, it deformed greatly after pressing and sintering, and deformation degree in each direction is not uniform. Especially for vehicle transmission mechanism in two special-shape holes,  and the symmetry for 2-10H9 and center hole is less than 0105mm. These dimensions affect assembly precision and noise from transmission mechanism directly.

http://www.zcmim.com/article/special-shape-gear-ssgs_1.html

Characteristics and Application of Tin Plating for Metal Injection Molding

Tin plating metal injection molding(http://www.zcmim.com/) product have following characteristics and application:

1 . High chemical stability;

2. Tin has more positive standard potential than iron. Regarding to steels, it is cathode coating, and can only protect substrate effectively in case without pore;

3. Good conductivity, easy to weld;

4. Crystallization began to mutate from-130C, and totally change to a kind of crystal allotrope on -300C, commonly known as "tin plague". Now tin nature has completely lost;

5. Same as zinc and cadmium coating, tin coating will grow into a crystal whisker called long hair in high temperature, humidity and airtight conditions;

6. Re-solution in above 2320C oil, tin plating product can obtain glossy tin pattern, taking as a decorative coating.

http://www.zcmim.com/article/metal-injection-molding-caaotpf_1.html

What Kinds of Electroplating on Metal Injection Molding Products?

What kinds of electroplating on metal injection molding products? In addition of single metal plating like lead plating, iron plating, silver plating, gold plating etc.. Alloy plating includes:  copper based alloy plating, zinc based alloy plating, cadmium based plating, indium based alloy plating, lead base plating, tin based alloy plating, nickel based alloy plating, cobalt base alloy plating, palladium nickel alloy electroplating. Composite plating includes: nickel base composite plating, zinc based composite plating, silver based composite electroplating and diamond composite electroplating.

http://www.zcmim.com/article/metal-injection-molding-woeomim_1.html

Mixture in Metal Injection Molding

Mixture in metal injection molding: raw materials for MIM mainly are mixture of fine metal powder, thermoplastic, wax binder in accordance with precise ratio. The mixing process is carried out in a special mixing device. The binders will melt after heating to a certain temperature. In most cases, mixing process is carried out by machine. Until the metal powder is coated with a binder uniformly then cool down to form granular, those granular then can be injected into mold cavity.

Original article link：http://www.zcmim.com/article/metal-injection-molding-mimimt_1.html

Electroplating Requirements by MIM metal injection molding

Electroplating process after MIM metal injection molding generally include three stages:  pre plating treatment, electroplating and after-plating treatment.

Requirements for plating layer:

1.       Good adhesion between coating and base metal, coating and coating

2.       Fine crystal, smooth surface and uniform thickness.

3.       The coating shall be provided with a specified thickness and as little as possible porosity

4.       Coating should have various tragets, such as brightness, hardness, electrical conductivity and so on.

Original article link：http://www.zcmim.com/article/mim-metal-injection-molding-erbmi_1.html

MIM Metal Injection Molding - Chrome Plating

MIM metalinjection molding - chrome, is a microstrip sky-blue silvery white metal. Although its electrode potential is very negative, it has a strong passivation performance. It can fast passivate in atmosphere, showing the natures of noble metal. Chromium plating layer on iron parts is cathode. Chromium layer is very stable in atmosphere, as well as in alkali, nitric acid, sulfide, carbonate and organic acid and other corrosive medium. But it dissolves in hydrochloric acid and other  halogen acid and hot concentrated sulfuric acid. It can maintain its luster for a long time is very stable.

Original article link：http://www.zcmim.com/article/mim-metal-injection-molding-m_1.html

Chromium Plating Performance

Chromium layer has high hardness, good wear resistance, strong reflective ability, and good heat resistance. Its hardness and gloss have no obvious change even below 500OC; When temperature above 500OC, it begins to oxidize and change color;  softening above 700OC. Due to the excellent performance of chromium plating layer, it is widely used as a outer and functional protective coating of a decorative coating system

Original article link：http://www.zcmim.com/article/chrome-plating_1.html

MIM metal injection molding-PVD

MIM metal injection molding-PVD realize substance transportation through physics process. It refers to the  process of transferring  atoms or molecules from origin to substrate surface . Its role is make some special performance particles( high strength, wear resistance, heat resistance, corrosion resistance etc.)spray on low performance parent body to make it with better performance.

http://www.zcmim.com/article/mim-metal-injection-molding-pvd_1.html

metal injection molding-phosphating

Metal Injection Molding(http://www.zcmim.com/) -Phosphating is a kind of forming phosphate film process by reaction of chemistry and electrochemistry. The purpose of phosphating are mainly:

1) Provide protection for matrix metal, preventl corrosion to some extent ;

2) used as render before painting, improve adhesion and corrosion resistance of coating layer

http://www.zcmim.com/article/metal-injection-molding-mimp_1.html

MIM Parts Electroplating

MIM parts(http://www.zcmimsz.com/) electroplating is a process through using electrolysis to make product surface adhered a layer of metal film. Electroplating can prevent from metal oxidation (rust), improve wear resistance, electric conductivity, reflective resistance, corrosion resistance(copper sulfate etc.) and improve aesthetics, and so on.

http://www.zcmim.com/article/mim-parts-electroplating_1.html

metal injection molding process blackening process

Metal Injection Molding Process -Blackening Process

Blackening process makes metal surface to produce a layer of oxide film  in order to isolate air for  rustproof purpose. It is a commonly used  chemical process. Products without high finish requirements can use black finish. The main composition of black liquor is sodium hydroxide and sodium nitrite.

http://www.zcmim.com/article/metal-injection-molding-process-pbpgg_1.html

Transformation of metal injection molding process in electronic products

The new trend of the electronic products’ design metallization will bring a metal fashion, and expand market space for metal injection molding(http://www.zcmim.com/) shell products, and it is very important for parts manufacturer how to catch the market. The change of market demand not only brought a significant increase in demand for raw materials of metal powder, also contributed to the traditional electronic products accessories suppliers to accelerate the strategic transformation, many of the traditional plastic parts suppliers have transformed into magnesium alloy pressure box, CNC metal shell, powder metallurgy, metal parts, optical glass reinforced LDS antenna new materials and new technology of manufacturing capacity in casting. Strategic transformation to make the company become a mobile phone structure of a one-stop design, manufacturing, and service providers, induce the industrial chain significantly extends, in addition, the design efficiency and manufacturing costs are expected to be optimized, and steadily improve the company's profitability.

Original article link：http://www.zcmim.com/article/metal-injection-molding-tomimp_1.html

Introduction of powder injection molding

Powder injection molding is a new technology, which combines the traditional powder metallurgy technology and the modern plastic injection molding technology. The main advantages of this technology can be directly manufactured parts which has the final shape, and minimizes the machining process and save the raw materials, and solves the difficult problem of complex products over the years; and the technology’s materials have application widely, usually can be made of metal, alloy, powder ceramics are available this technology into parts. In addition, it has the automatic continuous production for parts using this technology, and the high production efficiency, and excellent material character and high product size, so it is widely attention.

Original article link：http://www.zcmim.com/article/powder-injection-molding-ioipm_1.html

Process characteristics of powder injection molding

Powder injection molding is a new technology, which combines the traditional powder metallurgy technology and the modern plastic injection molding technology. The main advantages of this technology can be directly manufactured parts which has the final shape, and minimizes the machining process and save the raw materials, and solves the difficult problem of complex products over the years; and the technology’s materials have application widely, usually can be made of metal, alloy, powder ceramics are available this technology into parts. In addition, it has the automatic continuous production for parts using this technology, and the high production efficiency, and excellent material character and high product size, so it is widely attention.

Original article link：

http://www.zcmim.com/article/powder-injection-molding-process-pcop_1.html

MIM parts - afterprocessing technology

MIM parts are complex in shape and high density after sintering, which bring many difficulties to afterprocessing.

Shaping process: products are the high density so it is difficult for shaping process, and difficult deformation, big consume for molding and rebound easily.

Heat treatment process: due to the complicated shape of the parts, it is difficult to solve the deformation after heat treatment. Some micro parts (0.5-5 g) are difficult to ensure the same technical requirements after heat treatment.

Original article link：http://www.zcmim.com/article/mim-parts-at_1.html

How many are the MIM scientific research units in China?

China MIM scientific research unit has a large number of technical personnel who engaged in research work, and have a lot of research topics yearly, and a large number of achievements in scientific research. But most of these research topics just followed the international MIM development step. There are few MIM research achievements into production and application in recent years which is far away from the actual production. The main research units are: University of Science and Technology Beijing, Central South University, Guangzhou Institute of nonferrous metals, Beijing nonferrous metals, South University of science and technology, etc.

Original article link:http://www.zcmim.com/article/china-mim-hmtmsrui_1.html

Characteristics of MIM enterprises in China

Many of Chinese MIM enterprises are small and medium-sized enterprises, and many of the larger enterprises are also development from small and medium enterprises in a short period of time.

Enterprise characteristics: domestic MIM enterprises to establish relatively late and lower level and small size. Some small and medium MIM enterprises catch the opportunity to raise funds, recruit talent employees, developed the market, then rapid expand market, just a few years to become a big enterprise in the industry and annual income from millions to increase to tens of millions, even several billion. But some of the small and medium enterprises can’t correctly understand their own, no technology, no market development capabilities, and low management level which has poor economic efficiency then difficult to maintain.

Original article link:http://www.zcmim.com/article/mim-enterprise-comeic_1.html

Requirement of metal injection molding process for bonding agent

Requirement of metal injection moldingprocess for bonding agent

1 less dosage, with less adhesive agent can make better rheological properties of the mixture;

2 does not react, in the process of removing the adhesive and metal powder can not afford any chemical reaction;

3 easy to remove, no residual carbon in the inner.

Original article link：

http://www.zcmim.com/article/metal-injection-molding-process-romimp_1.html

How much do you know about the technology of powder metallurgy injection molding?

Powder injection molding technology(http://www.zcmim.com/help/leaveword.shtml

) is a set of plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials science and other disciplines and cross product penetration, the mold can be injection molded blank and rapid manufacturing of high density and high precision, 3D complex shape by sintering parts, can quickly and accurately make designing to have a certain structure, product features, and can directly produce a large quantity of parts, manufacturing technology industry is a new change.

Original article link：

http://www.zcmim.com/article/powder-metallurgy-injection-molding-technology-hm_1.html

Material of medical apparatus and instruments wheel

ZCMIM metal injection molding company has more experience in the powder metallurgy metal injection molding, small complex metal parts, stainless steel parts and other products of medical devices. Medical apparatus and instruments wheel’ character, please kindly see below information:

Medical apparatus and instruments wheel use the high-quality PU material or TPR plastic which has highly flexible, slide with minimal noise, flexible rotation, running quietly, shockproof, anti acid, alkali, salt solution and other chemical corrosion, impact resistance, resistance to high temperature, no scar, no damage to the floor wheel etc. Use for all kinds of medical apparatus and instruments and electronic equipment especial.

Original article link：http://www.zcmim.com/article/metal-injection-molding-moaiw_1.html

High performance of metal powder injection molding

High performance and multi-function metal powderinjection molding can make composite, ultra fine, nanometer structured and the metal powder injection molding parts with high strength, shape complexity, miniaturization and precision manufacturing technology, also the production process is efficient, energy saving, material saving and low cost. Because of the mutual infiltration and combination, may be can produce the more products with the metal powder injection molding technology.

Original article link：

http://www.zcmim.com/article/metal-powder-injection-molding-hpomin_1.html

Metal injection molding - medical apparatus and instruments

The rapid development of medical apparatus and instruments provides a strong power for the powder injection molding industry. Medical apparatus and instruments contains a large number of precision parts and sensors, due to the accuracy of the requirements for medical apparatus and instruments, so use the metal injection molding technology can produce the satisfied products. So the development of the medical apparatus and instruments will also boost injection molding parts usage. In future, medical apparatus and instruments will still be heavy industry in China market for metal injection molding.

http://www.zcmim.com/article/powder-injection-molding_1.html

2016 world powder metallurgy conference Germany exhibition time

Country: Germany

City: Hamburg

Hamburg Convention Center

European Institute of powder metallurgy

Hold time: 2016-10-9

End time: 2016-10-13

2016 world powder metallurgy Conference & Exhibition

Exhibition Profile

2016 world powder metallurgy conference and Exhibition (PM2016) sponsored by the European powder metallurgy Association, will be held in Hamburg, Germany, October 2016 9-13. The first round of the day before the organizers issued a notice. World class technical issues and the most advanced international exhibition will provide an ideal opportunity for suppliers, manufacturers and end users.

It is expected that there will be 500 papers, including the form of presentation and poster presentations, as well as the recent development in the powder metallurgy industry through plenary meetings and special interest workshops. In addition, there will be a global expert to make a report for marketing review.

The PM2016 exhibition will be the world's powder metallurgy industry technology and the actual strength of the show. The company and their products will show in the PM2016 exhibition. If you want to get more information about PM2016 exhibition, please send the E-mail to sales2@zcmim.com , thank you!

http://www.zcmim.com/article/germany-powder-metallurgy-exhibition_1.html

MIM Technology – Debinding Process

In order to facilitate forming, MIM technology has added a large number of binder (15~20%) in its raw materials. These binders must be removed completely before sintering process. Different feedstock system requires  different ways of degreasing. As majority of enterprises are not familiar with the use of feedstock, they can not use debinding technology correctly and reasonably. Any debinding defect will affect sintered products quality directly and affect products yield rate directly. Equipment failure is mostly caused by improper operation in process of debinding, which is not related to the structure and quality of equipment.

Original article link：http://www.zcmim.com/article/mim-technology-dp_1.html

Metal Injection Molding Used in What Industry?

As ZCMIM mentioned before, MIM is also widely used in medical, 3C and hardware machinery, tool accessories, fishing accessories, mobile phone accessories, electronic accessories, mobile phone USB interface OEM except for industry. One Characteristic of metal injection molding is suitable for mass production small metal parts with complicated shape, high precision and high performance. Usually MIM has more cost advantage for annual demand over 100 thousand.

Original article link：http://www.zcmim.com/article/metal-injection-molding-uwi_1.html

Do MIM has Special Requirements for Tooling?

Moulds for metal injection molding(http://www.zcmim.com/) suffer more serious erosion wear than general plastic injection. Wear resistance is one of the most basic requirements for mass production by metal injection mold cavity. General required hardness of cavity is 58~62HRC. Under injection temperature, metal injection molding often produce corrosive gases. Hence corrosion resistance is also a certain requirement for mold material. In order to obtain good fluidity for feeding, MIM material applied low molecular weight and binder. It make MIM feeding flash high sensitivity, similar to the characteristics of many nylon materials. So MIM mold must have high accuracy, no flash, high surface quality and quality requirements.

Original article link：http://www.zcmim.com/article/metal-injection-molding-dmhsr_1.html

Advantages of Metal Powder Injection Molding Process 1

Metal powder injection molding process has exclusive advantages in the production of large and complex parts. Designers should focus on the design of complex 3D shapes parts in order to give full play metal powder injection molding process, reducing production costs and improving product performance. The advantages of metal powder injection molding process can be summarized as follows:

Metalpowder injection molding can form various complex shape metal parts with consistent density and performance, which is isotropic. Powder metallurgy provides a great freedom for product design.

It can maximum close to final parts in high precision.

Relative density can reach 95% even by solid phase sintering. And its performance can be compared to forging materials, especially good dynamic performance.

Original article link：metalpowder injection molding process 

Advantages of Metal Powder Injection Molding Process 2

Metal powder injection molding can produce micro composite or macro composite material parts, giving full play to the excellent performance of different materials.

Automatic molding machine cost of powder metallurgy(http://www.zcmim.com/

) is several times higher than the price of metal injection molding machine. It can use multi cavity mold with high efficiency, long life time and adjust mould fast and conveniently.

Injection material can be used repeatedly, the material utilization rate reached above 98%.

Fast convert from one product to another, flexible mass production short time from design to production .

Metal powder injection molding is particularly suitable for large batch production. Good consistency of product performance. If appropriate selection of product and large quantities, it can obtain high economic benefit.

Wide range of materials and wide application. Its material is very extensive, such as carbon steel, alloy steel, tool steel, refractory alloy, high proportion alloy.

Original article link:

http://www.zcmim.com/article/metal-powder-injection-molding-apmpi_1.html

MIM Application Introduction

Metalinjection molding (also known as MIM or powder injection molding or PIM) is a net forming process for manufacturing solid metal parts. It combines the material properties of forging and the design flexibility of injection molding. Due to its inherent design flexibility, MIM can be used to create any shape product with a variety of alloys. Today, many high performance required products are used MIM process, including automotive fuel injection and ignition system, aerospace and defense systems, mobile phones, dental instruments and dental tools, electronic radiator and reinforcement sealing packaging, junction box, industrial tools, optical fiber connector, fluid spray system, hard disk, pharmaceutical equipment, handheld electric tools, pumps, surgical instruments and sports equipment etc..

Original article link：http://www.zcmim.com/article/metal-injection-molding-maid_1.html

Application Characteristics of MIM Technology

Using MIM technology to develop metal parts’ geometry, we should pay attention to the flexible design of plastic parts, getting rid of the limitation of traditional metal processing technology. MIM process can deal with complex shape parts, assess multiple parts, integrate a variety of feature / function into  a single component, enhance product assembly performance, simplified mechanical components and reduce the quality, but also can customize various physical properties according to the expected end use.

MIM is the most cost-effective process for manufacturing medium or large quantity small and complex metal parts. One way to evaluate an alternative is to envision how much machining operations are used to produce a product. Generally speaking, regarding a product required 4 or more process, MIM is the preferred process. Note: for each machining feature, processing cost will increase; while for mold shaping, MIM cost increase little, and even do not increase the cost.

Original article link：http://www.zcmim.com/article/mim-technology-acomt_1.html

Metal Injection Molding

metal injection molding(http://www.zcmim.com/)an be used in the production of complex structural parts directly. With mold forming process, product need no or only a very little machining; high utilization rate of material, using gate injection, material selection is various. The texture of product is uniform microstructure and good density. Its density can reach as 95%-99% as theoretical density. Specific hardness can be reached through carburizing, quenching and tempering. Surface roughness is up to Ra1.6. After post polishing, surface can achieve mirror effect.

Original article link：http://www.zcmim.com/article/metal-injection-molding-cbug_1.html

MIM Metal Powder Injection Molding

MIM is the abbreviation of metal powder injection molding, which is developed from plastic injection molding technology. Metal powder injection molding technology is a kind of near net shape technology manufacturing high quality precision parts. MIM make mass production easy, and get product quality stable and easy to control. Product’s structure is not restricted for MIM. Irregular surface can be realized by MIM technology too. Products with holes and grooves, concave and subsidence, thread, knurling, lettering, engraved trademark are all available for metal powder injection molding MIM too.

Original article link：

http://www.zcmim.com/article/metal-powder-injection-molding-pimi_1.html

The processing for defect products of the stamping1

How to deal with the bad situation in the stamping process? Come with ZCMIM powder metallurgy process manufacturers to understand.

1 according to the material, product structure to determine the amount of deformation compensation;

2 according to the amount of compensation then design the model for stamping out the finished or semi-finished products;

3 processing semi-finished products to finished products;

Original article link：

http://www.zcmim.com/article/powder-injection-modeling-company-tpfdpots_1.html

The processing for defect products of the stamping 2

defect phenomena including crack, wrinkle, strain, uneven thickness, not forming etc.

(1) screw drill hole diameter and depth (bottom hole size according to the thread specification to determine the size); external threads to process to the thread size outside the circle (size is determined according to the specification of thread)

(2) Produce thread: internal thread use the corresponding grade; external thread by thread cutter or die threading.

(3) Defect phenomena including wire arbitrary deduction, not uniform size, thread gauge inspection unqualified materials etc. According to the requirements of the user to select copper, aluminum, low carbon steel etc which has lower deformation resistance, and good the plasticity good ductility of metal or non-metal.

For the inspection specification, according to the requirements to determine the inspection specification, like thread inspection has the GB thread gauge, hole inspection has the plug gauge or buy GB standard size gauge.

Original article link：metal stamping parts

http://www.zcmim.com/article/the-processing-for_1.html

Powder Metallurgy Technology pplication

In defense industry, such as launch vehicles, missiles, aircraft engines, ships, nuclear industry, military electronics industrial heat and corrosion resistance refractory metals, ultra hard materials, those can only be produced by powder metallurgy technology. In modern science technology, nanotechnology is also a new field of powder metallurgy. Therefore, powder metallurgy technology always gain world attention as a new high technology in field of material science.

http://www.zcmim.com/article/powder-metallurgy-technology-pp_1.html

Powder Metallurgy Technology - Manufacturing of Mechanical Parts

Secondly, another major development direction of powder metallurgy technology is the manufacture of mechanical parts, including structural parts, oil bearing and sintered friction materials, etc.. Powder metallurgy parts started in 1916, used in copper based powder metallurgy oil bearing industry. With the development of automobile industry, powder metallurgy parts begin to be used in automobile manufacturing industry.

Original article link：http://www.zcmim.com/article/powder-metallurgy-parts-mom_1.html

Metal Injection Molding—Sprue Gate Location

How to located sprue gate when design mould before metal injectionmolding process? There are some suggestions for your reference.

(1)   Choose nearest obstacle

(2)   Gate size and location should avoid  injection and peristalsis.

(3)   Gate should be located in the thickest part of injection part section

(4)    Gate location should make flow process shorter and less change of flow direction

(5)   Gate location should be  helpful for discharging inside cavity gas

(6)   Gate location should reduce or avoid weld mark so as to increase weld fastness.

(7)    Gate location should be selected to prevent material from extrusion deformation by cavity, core and insert

Original article link：http://www.zcmim.com/article/metal-injection-molding-sgl_1.html

Powder Metallurgy Process—Pouring Gate Form

As explain in last article, pouring gate is also called  feeding throat or inner sprue.In  powdermetallurgy process projects, their pouring gates have so many forms. They can be generally concluded as follows:

Inside gate
Common side gate (edge gate)
Outer gate
Fan-shaped gate: used to  for  wide lamelliferous products

Flat seam type gate
Tab gate

Gap gate
Point gate
Subsurface gate
Disc ring gate
Spider gate

Claw gate
Circular gate

Original article link：http://www.zcmim.com/article/powder-metallurgy-process-pmppgf_1.html