How Many Binders?

Big binder has been applied to metal injection molding industry, different binder reflect difference between powder properties and de-binding process. The binder in injection molding process can generally be divided into five types, most of them are compounds, specific classified as: thermoplastic polymer, thermosetting polymer, inorganic polymer, gel system, inorganic substance

Original article link：http://www.zcmim.com/article/binder-metal-injection-molding_1.html

The First Phase of De-binding

The first phase of debinding generally can adopt solvent extraction, siphonage, evaporation, distillation, catalytic reaction and thermal decomposition method. Not removed binder plays the role of fixing powder particles and keeping blank shape in the first stage of de-binding. In the following heating process, residual adhesive was evaporated from open pore. Usually hope the binder will not form internal vapor pressure during removing, lest cause deformation of blank.

Original article link：http://www.zcmim.com/article/debinding-tfpod_1.html

the MIM metal injection molding of cemented carbide powder

In metal injection molding MIM, another important powder is cemented carbide powder, it is a mixture of tungsten carbide and cobalt powder powder, cobalt powder and tungsten carbide inspection milling time can reduce the average particle size of powder particles, and on the surface of tungsten carbide wrapped a layer of cobalt in the process of sintering, cobalt powder melt into liquid phase, when cooling solidification as a kind of hard phase, after grinding powder its standard oxygen content of 0.07%, all other refractory metal chromium, molybdenum content of about 0.01% in general.

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the MIM ideal characteristics of metal injection molding

Suitable for injection powder particle size and morphology change is bigger, in the morning, but in general, the requirement for particles of equiaxed grain size, nearly spherical, and less than 20 microns, due to the large particles between small particles can fill powder, thus wide particle size distribution of powder packing density is high, but to ease the breakfast injection of broad size distribution of two phase separation, so as to bring the technology behind the greater difficulty.

Original article link：http://www.zcmim.com/article/metal-injection-molding-tmicomi_1.html

metal injection molding process of phase

Metal injection molding process can be divided into several stages: raw materials selection, mix in granulating and granulating, molding, debinding and sintering, etc., each stage has its special role.Powder and binder mixing process is one of the most important step, a mixture of powder and the binder is called feeding.Injection molding process for feed has good uniformity, good rheological property and good degrease performance.Only take care of the three ways of metal injection molding feeding is a successful feeding system.

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http://www.zcmim.com/article/metal-injection-molding-process-opmp_1.html

metal injection molding the material system direction

Metal injection molding technology is ideal, able to shape, the shape, eventually need to be close to the economy only little or no need to follow-up after sintering processing of near net shape technology, this in industrialized production and application of the ceramic becomes more and more important, in the production of precision ceramics is mainly used to carbide, metal ceramics, pottery, inorganic nonmetal oxide ceramics, intermetallic compounds, etc.

Original article link：http://www.zcmim.com/article/metal-injection-molding-mimtmsd_1.html

mechanical performance requirements of MIM products

At present although the MIM has been applied in all kinds of material system, but in the context of market sales, the vast majority of products focused on his brother to mechanical performance requirements is not high alloy steel, stainless steel products, with Japan's statistics as an example, in 2002, 67% of MIM products for low alloy steel and stainless steel products, less than 15% T alloy, high speed steel, cemented carbide of high mechanical performance requirements such as sensitive tool materials.

Original article link：http://www.zcmim.com/article/mim-mprom_1.html

MIM sintering problem

At present although the MIM has been applied in all kinds of material system, but in the context of market sales, the vast majority of products focused on his brother to mechanical performance requirements is not high alloy steel, stainless steel products, with Japan's statistics as an example, in 2002, 67% of MIM products for low alloy steel and stainless steel products, less than 15% T alloy, high speed steel, cemented carbide of high mechanical performance requirements such as sensitive tool materials.

Original article link：http://www.zcmim.com/article/mim-mprom_1.html

Why MIM Suitable for Small Size Product?

MIM process joins a large number binder. Its sintering after removing binders is similar to traditional powder metallurgy sintering. Taking fine powder as raw material can meet the requirement of densification, which results in cost increase greatly. If large size products still adopt fine powder, it will be not competitive. At the same time, due to product size increasing, degreasing time increased accordingly, and the defect occurrence probability increase greatly. In addition, product size increased, injection molding time increased so as for higher requirements for rheological properties of binder in order to carry powder quickly to different parts of the cavity. All above are factors restricting MIM products to larger size. Hence MIM technology has been confined to smaller size, high accuracy product.

Original article link：http://www.zcmim.com/article/mim-process-wmsfss_1.html

What Special Parts Unable to be Made by Traditional Powder Metallurgy?

As a kind of manufacturing high quality precision parts near net shape forming technology,  metal injection molding has the incomparable advantage over conventional powder metallurgy and machining. MIM can make a lot of parts with complex shape characteristics, such as various external cutting, external thread, conical outer surface, cross hole and blind holes, concave and convex, key pin, reinforcing rib plate, knurled surface and so on. All parts has the characteristics above are unable to use traditional powder metallurgy method.

Original article link：http://www.zcmim.com/article/metal-injection-molding-wsputbm_1.html

Metal Injection Molding Advantage

With a large amount of binder act as enhance flow, metal injection molding process can forming a variety of complex shape metal part like plastic industry does. This is unable for traditional powder metallurgy mold process. Besides as metal injection molding is a kind of net-shape forming technology, almost no subsequent processing reduce manufacturing cost greatly, parts need dozens of machining before can get from once molding.

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http://www.zcmim.com/article/metal-injection-molding-process-mimasdf_1.html

Practice of Metal Injection Molding Technology

As applying fine powder and a large amount of binder, the process and mechanism of metal injection molding technology changed great compared with traditional powder metallurgy suppressing/sintering process. There are many new foundation theory and practical problems like plasticizing rheological behavior of powder/binder, process forecast and control for feeding filling cavity steadily, physical chemistry mechanism and dynamics for removing binder from green part, densification loose powder and so on.

Original article link：

http://www.zcmim.com/article/metal-injection-molding-technology-pomit_1.html

MIM Technology Becomes An Excellent Process Generally

Due to adopt injection molding, MIM technology can produce a variety of complex shapes. All customize various parts can use MIM technology, saving a lot of machining process. As in flow state, filling cavity evenly to form, cavity pressure in each point and density are consistent. MIM technology eliminates inevitable density gradient of traditional powder metallurgy forming caused by suppressing direction, can obtain near net shape parts with uniform structure, excellent mechanical properties.

Original article link：http://www.zcmim.com/article/mim-technology-maepg_1.html

New Type Powder Metallurgy- Near Net Shape Technology

With the speeding up of technological progress and innovation, material processing technology is more and more toward the high performance, low cost, short process, near net forming direction, therefore emerge some new preparation technologies combining design, preparation and proces, such as metal injection molding technology. Metal injection molding (MIM) is a new type of powder metallurgy near net shape technology developing from the thoughts absorbing advanced plastic injection molding into traditional powder metallurgy. Its basic process is: firstly, mixing metal or ceramic powder with organic binder powder evenly, then molding by injection molding machine, remove binders from green part, finally through sintering densification to get final product.

Original article link：http://www.zcmim.com/article/metal-injection-molding-ntpm_1.html

Several Kinds of Materials for Powder Metallurgy Brake Piece

Powder metallurgy brake piece has two kinds: iron base and copper base. Iron base powder metallurgical brake piece has excellent tribological propertie and high mechanical strength under high temperature and high load, can be used within 400-1000 ℃, but attrition is quite large at low speed. Thermal stability of the iron base is higher than copper base. The disadvantage is that has the affinity with dual (such as cast iron or steel), easy to produce adhesive agglutination, volatile friction coefficient, easy to happen abnormal wear and tear, produce noise, etc.

Original article link：

http://www.zcmim.com/article/powder-metallurgy-brake-block-skomf_1.html

Powder Metallurgy Brake Block

Powder metallurgy brake block has both the friction coefficient suffer no effect on weather as casting iron brake block does, but also has the friction coefficient do not change with the train speed same as organic synthetic brake block does. And the wear resistance and thermal conductivity are all well. The high-speed train, high-power locomotives and French TGV high speed trains are all used this kind of brake block in Sweden, Canada and other countries. And they have achieved certain braking effect. But powder metallurgy brake block has great  abrasion on wheel. Its cost is higher than cast iron brake block and organic synthesis, thus make it difficult to use a lot.

Original article link：http://www.zcmim.com/article/powder-metallurgy-brake-block_1.html

Metal Compounds Transformed into Powder Methods

transforming solid metal and alloy or metal compounds into powder methods include:
(1) mechanical smash and electrochemical corrosion method make metal and alloy powder from solid metal and alloy
(2) Reductive – legally method. Preparing metal compounds from solid metal oxides and reduction between salts discretion metal and alloy powder from metal and metal powder, metal oxides and nonmetal powder.

Original article link：http://www.zcmim.com/article/metal-compounds-transf_1.html

Metal Compounds Transformed into Powder Methods

transforming solid metal and alloy or metal compounds into powder methods include:
(1) mechanical smash and electrochemical corrosion method make metal and alloy powder from solid metal and alloy
(2) Reductive – legally method. Preparing metal compounds from solid metal oxides and reduction between salts discretion metal and alloy powder from metal and metal powder, metal oxides and nonmetal powder.

Original article link：http://www.zcmim.com/article/metal-compounds-transf_1.html

The Special Structure of MIM Metal Injection Molding

MIM metal injection molding can produce special structure and properties products that ordinary smelting method cannot produce, such as new porous biological material, porous membrane material, high performance ceramics abrasive tool and functional ceramics material, etc. MIM metal injection molding can realize near net shape forming and automatic batch production, thus, can effectively reduce resources and energy consumption. MIM metal injection molding can make full use of ore, tailings, steelmaking sludge, rolled steel and recycling scrap metal as raw materials. It is a new technology can realize material regeneration and comprehensive effectively.

Original article link：

http://www.zcmim.com/article/mim-metal-injection-molding-tspmmi_1.html

The Special Structure of MIM Metal Injection Molding

MIM metal injection molding can produce special structure and properties products that ordinary smelting method cannot produce, such as new porous biological material, porous membrane material, high performance ceramics abrasive tool and functional ceramics material, etc. MIM metal injection molding can realize near net shape forming and automatic batch production, thus, can effectively reduce resources and energy consumption. MIM metal injection molding can make full use of ore, tailings, steelmaking sludge, rolled steel and recycling scrap metal as raw materials. It is a new technology can realize material regeneration and comprehensive effectively.

Original article link：

http://www.zcmim.com/article/mim-metal-injection-molding-tspmmi_1.html

Toughness and Hardness of Metal injection molding process

Metal injection molding process will encounter a variety of materials and toughness problems. Some is not easy to adjust, some can be modified in some way, such as dipping, hot pressing or liquid phase sintering, whose effect is very good. But if you are using superfine powder and combine hot isostatic pressing process, the hole on MIM parts’ surface can get basic fusion, material density is close to theoretical limits, its toughness is obviously improved. Besides toughness, everyone is concerned about the hardness of products. In fact, harness has less relationship with metal injection molding process, mainly depends on the chosen material.

Original article link：

http://www.zcmim.com/article/metal-injection-molding-process-tahpmim_1.html

Powder Forging

Powder forging is also called beforehand hot parison. It is the composite technology in preheating section of metal injection molding. Parts made of this method, theoretical density can be up to 99.4%. It is mainly used for iron based parts, the main material is carbon steel and low alloy steel, also high temperature alloy. The strength of brocade based high temperature alloy part made in this way - temperature performance surpassed that made by traditional method.

Original article link：http://www.zcmim.com/article/powder-forging-sdgvc_1.html

MIM Process- Preferred ZCMIM

Rely on low cost, simple, fast forming of MIM process and tight texture, uniform organization, superior mechanical properties, high precision, small tolerance of MIM products, coupled with modern powder metallurgy composite materials such as the improvement of high temperature alloy quality, more high performance, high quality aircraft and auto parts will appear in the future production. In the era of big manufacture approaching, MIM technology is sure to distinguish! Preferred ZCMIM for Metal powder injection molding, welcome to inquire.

Original article link：http://www.zcmim.com/article/mim-process-mppz_1.html

Traditional Precision Casting Process

Traditional precision casting is an effective technology for producing complex shape product. In recent years, using a contented heart auxiliary can complete slit, deep cavity product, but because of the strength of ceramic heart, as well as the casting liquid limit, the process still have some technical difficulties. In general, the process is suitable for manufacturing large and medium-sized parts. Small and complex shape parts are more suitable for MIM technology.

Original article link：http://www.zcmim.com/article/mim-technology-tpcp_1.html

The Development Direction of MIM Technology in Mechanical System

Modern MIM technology（http://www.zcmim.com/） application in mechanical manufacturing is developing along two directions:

A. making high load parts
B. making complex high dimensional accuracy parts, and makes the final mechanical processing to the minimum.

Original article link：http://www.zcmim.com/article/mim-technology-tddoti_1.html

Precision Casting Process

Although precision casting product improved precision and complexity in recent years, it still can't compare with de-waxing process and MIM process. Powder forging is an important development and suitable for volume production of connecting rod. But in general, heat treatment cost and mould life of forging still has questions, yet to be further solved.

Original article link：http://www.zcmim.com/article/precision-casting-process_1.html

how to promote the MIM technology rapid development of China?

How to promote the rapid development of MIM process of China?Come and see what the MIM manufacturers zcmim say.

1, to establish the new mechanism of integration of trade and industry production and development

2, strengthen the research and scientific guidance to the development of the industry planning

3, the high technology industry development policy

4, actively seeking international technology cooperation

Original article link：http://www.zcmim.com/article/mim-process-htptm_1.html

the development of MIM technology in developed countries

The United States, Europe and Japan and other developed countries in the world in the early 1990 s was basically completed the MIM technology to the development of MIM industry shift, MIM industry in China and abroad overall level gap in about 10 to 15 years.Favorable time in manufacturing industry development in our country at present, the MIM technology application space is big, product market prospect, this undoubtedly for our country to speed up the development of MIM industry provides a rare good strategic opportunity.

Original article link：http://www.zcmim.com/article/mim-technology-tdomti_1.html