The most common methods of powder metallurgy sintering

Powder metallurgy sintering methods usually have the following categories:

Liquid phase sintering

If there are more than two kinds of components in the powder blank, sintering is likely to be carried out above the melting point of a certain group of elements, so that a small amount of liquid phase appears in the powder compact during the sintering process.

Pressurized sintering

In the sintering process, the powder is applied to the powder to promote its densification process. Pressurized sintering is sometimes synonymous with hot pressing, hot pressing is the combination of powder forming and sintering, and the process of the product is directly obtained.

Activated sintering

Some physical or chemical measures are adopted in the sintering process, the sintering temperature is greatly reduced, the sintering time is shortened, and the performance of the sintered body is improved and improved.

Spark sintering

The powder body is formed by the direct current power and the pulse electric power, and the electric arc between the powder particles is sintered; and the pressure is gradually applied to the workpiece during the sintering process, and the two processes of forming and sintering are combined together.

Processing method for complex parts of industrial hardware

In the hardware structure is more complex parts are generally precision casting or investment casting process. There are MIM process to manufacture, the complex parts of the processing method?

Part structure analysis

The analysis of the components in the processing of parts by important, it analysis the influence to the parts clamping. Don't underestimate this link clamping. Often put clip mistakes can make the machining process can not continue down, so that the parts can not be completed.

1, the basic types of parts

(1) parts of the composition of a variety, such as the pros and cons of mating parts, parts of the surface of the main surface of the parts to be processed parts. First, we should according to the characteristics of the parts to analyze the processing route of the parts.

2, parts of the processing surface

(2) the selection of parts of the processing surface is very important, often the wrong choice of the processing surface so that parts can not be installed in the next step, so that parts processing can not continue.

Two, a brief introduction of the processing parts of the relevant processes

1, part of the processing of material selection

Blank data including all blank manufacturing methods of technical and economic characteristics of various profiles of varieties and specifications, rough map; under no blank map, practical understanding of the blank shape, size and mechanical properties of the. Different material will affect the components and different material will make the service life of the parts and the production cost is greatly different, so parts of the material is especially important.

2, to develop the process route.

3, determine the machining allowance of each process, calculate the working dimensions and tolerances.

4, determine the various processes used in the equipment and tools, fixtures, measuring tools and auxiliary tools.

5, determine the time quota.

6, processing parts.

7, check the size of the parts.

Which places should be paid attention to in the process of heat treatment of ferrous powder metallurgy products?

In powder metallurgy products in the production process, the iron base powder metallurgical product is a product yield is very huge, in the production process has many matters need to pay attention to, in order to ensure that reaches the standard of iron base powder metallurgy products performance and structure. Here we have to through some of the production process to try to understand the need to pay attention to the content.

In the production of iron base powder metallurgy products, performance and structure formation is formed in the sintering process, but there are some performance only by subsequent heat treatment to improve and perfect, so in the Fe based powder metallurgy process of heat treatment process is a technology that is very important to.

Heat treatment process of iron base powder metallurgy products although the same with the general process of powder metallurgy, but due to a variety of powder metallurgy products with porosity and alloying elements microheterogeneity of distribution, so principle used in the heat treatment process of powder metallurgy parts also is may change from time to time.

Our company for many years production experience meaning market development summary, accumulated a lot of about the production of powder metallurgy product technical force to solve encountered in dealing with the related problems in a great extent, so our company production of powder metallurgy products in the market of powder metallurgy products are of first-class quality products.

In strengthening the quality of powder metallurgy products at the same time we continue to enhance service quality, only good service can let more users recognized our products. Sincerely welcome you came to our company to buy powder metallurgy products!

ZCMIM's views on the future development of MIM industry

The development of metal injection molding in the manufacturing industry China very quickly. From the initial transition to powder metallurgy, injection molding process at present, seems to have in recent years. Or, in domestic manufacturing, MIM technology in recent years began to fire up.

There are more and more new markets for metal injection molding, began to try to import MIM technology. Aerospace, automotive, medical, military, all walks of life began to have MIM of the product. China is a manufacturing country. The powder metallurgy process, will face greater market. The traditional processing techniques, will suffer a severe test.

It is understood that the MIM process in the manufacturing of aircraft structural parts, auto parts has been quite common, the powder metallurgy MIM products are represented in aircraft manufacturing, automobile manufacturing field use. With the arrival of the era of domestic manufacturing, believe that MIM technology will have more opportunity to show its mettle.

Use in the car for more than thousands of powder metallurgy parts

Powder metallurgy is an important part of forming technology. The new technology for powder metallurgy constantly, will promote the rapid development of the high-tech industry, but also will bring the prospect of material engineering and manufacturing technology of light.

由于粉末冶金工艺具有节约原材料、自身重量轻、性能优异、成本低等众多优势，除发动机、变速器和电动机轴承外，现在粉末冶金零件在汽车上使用的范围也越来越广，更多的零件被用在底盘、车身、内饰等处，前景十分广阔。目前，在汽车上使用的粉末冶金件已经超过了1000种。有业内人士指出，粉末冶金结构零件在替代已有的齿轮、凸轮、链轮、各种形状的铸件、锻件、切削加工件和开发新型结构零件方面具有独特的优势。

Due to the powder metallurgy process with raw material is saved, and the weight of its own light, excellent performance, low cost, which has many advantages, in addition to the engine, gearbox and motor bearing, now use powder metallurgy parts in automobile is more and more widely, more parts are used in the chassis, body, interior department, the prospects are very broad. 

At present, powder metallurgy parts used in the car has more than 1000. Insiders pointed out, has unique advantages in powder metallurgy structural parts to replace the existing gear, cam, sprocket, various shapes of castings, forgings, cutting and the development of new structural parts.

为了实现人类与自然和谐共存目标，必须改变现有的生活方式，节约能源，减少CO2的排放，保护生态，迎接低碳时代的到来，新能源汽车的正逐渐使用。大力发展粉末冶金新技术的研究，对迎接低碳时代的到来，新能源的逐渐使用具有非常重要的意义，粉末冶金零部件也朝着节能减排目标发展。

In order to realize the harmonious coexistence of human and nature of the goal, we must change the existing way of life, save energy, reduce CO2 emissions, protect the ecological, to meet the arrival of the era of low carbon, new energy vehicles is gradually. Study on the development of new technology in powder metallurgy, to meet the low-carbon era, new energy use gradually has a very important significance for the powder metallurgy parts also toward the goal of development of energy saving and emission reduction.

In pics: Spring flowers bloom across China

GUIYANG, March 6, 2016 (Xinhua) -- Birds land on branches in Guiyang, capital of southwest China's Guizhou Province, March 4, 2016. 

LISHUI, March 6, 2016 (Xinhua) -- A bee flies amid flowers in Jingning County of Lishui City, east China's Zhejiang Province, March 5, 2016. 

LONGNAN, March 6, 2016 (Xinhua) -- Flowers bloom by the Bailong River in Wenxian County of Longnan City, northwest China's Gansu Province, March 4, 2016. 

HUAI'AN, March 6, 2016 (Xinhua) -- Willow trees bud in Huai'an City, east China's Jiangsu Province, March 5, 2016. 

ZAOZHUANG, March 6, 2016 (Xinhua) -- Winter jasmine blossoms are seen at a park in Zaozhuang City, east China's Shandong Province, March 5, 2016.

Application of cemented carbide

In recent years, steel bonded hard alloy as a new type of mould material, has been widely used. Steel bonded hard alloy after annealing, cutting, after quenching and tempering, the equivalent of hard alloy with high hardness and wear resistance, the heat resistance, corrosion resistance and oxidation resistance, welding and forging, applicable to produce complex shaped tool (such as twist drill, milling cutter and so on), dies and wear-resistant parts.

Mainly used for hard alloy cutting tools, such as turning, milling etc.. The more carbide content, the less cobalt content, the more high hardness, hardness, wear resistance, but the lower the strength and toughness of the alloy. YG alloy is suitable for the processing of brittle materials, YT alloy is suitable for processing plastic materials.

The same kind of alloy is suitable for rough machining with high cobalt content, and is suitable for fine processing with low cobalt content.

Also used in the manufacture of hard alloy cold die, die, die, such as cold cold extrusion and cold forging die etc.. The YG class is suitable for drawing die, YG6, YG8 is suitable for small drawing die, YG15 is suitable for drawing die and stamping die.

Hard alloy is also used to manufacture tools and wear parts, such as micrometer measuring head, lathe parts tip, finishing roll and centerless grinder plate.