Product

Product
Nanometer Tungsten Powder 433

Nanometer tungsten powder is a nano-sized tungsten powder, which is an indispensable dingal material in many high-tech fields. Property Nanometer tungsten powder has uniform particles, highly active, larger specific surface area, and can be controlled under 1% after passivation. Application Nanometer tungsten powder has been widely used in aerospace alloys, electronic packaging alloys, electrode materials, microelectronic films, sintering additives, protective coatings, gas sensor electrodes and so on. It has become indispensable to many high-tech fields of dingal materials , is…

Product
Ultrafine Tungsten Powder 439

Ultrafine tungsten powder has characteristics significantly of high density, high temperature resistant, high hardness, is the important raw materials in a variety of important dingal materials and structural materials, is indispensable high-tech materials of many fields. Characteristic Ultrafine tungsten powder has high density, high temperature resistant, high hardness. Preparation method Preparation methods of ultrafine tungsten powder has a dry atmosphere reduction method, tungsten trioxide circulation oxidation – reduction method, hydrogen reduction of purple tungsten hydrogen reduction method, halogenate tungsten method,…

Product
Fine Tungsten Powder 477

Fine tungsten powder is a relatively small amount of tungsten powder, has high quality and high purity, is mainly used as the raw material for tungsten contact, high gravity tungsten alloy and tungsten bar. Appearance The appearance is light gray or dark gray, uniform color and appearance. Purity The purity of fine tungsten powder can reach above 99.95%, impurity content is very few. Granularity Its granularity is uniform, and no clamping or pinching phenomenon occurs. Application Fine tungsten powde is…

Product
Tungsten Carbide Grits 3,552

Tungsten carbide grits is composite of tungsten carbide and cobalt. The cobalt content is within 8% to 9%, tungsten carbide with 91% to 92%. Our tungsten carbide grits with excellent properties of high hardness, T.R.S., strength, high toughness, heat resistance and corrosion resistance. Main Mesh and Grain Size Type Mesh Grain Size mm Type Mesh Grain Size mm Corse 4-6 4.76-3.17 Medium 6-10 3.17-1.98 5-8 3.96-2.38 6-14 3.17-1.59 6-8 3.17-1.59 8-10 2.38-1.98 Fine 8-14 2.38-1.59 Very Fine 20-30 1.19-0.79 10-14…

Tungsten Copper
Tungsten Copper Heat Sink Electrical Conductivity 1,434

Except Rockwell hardness (HRB) of detection, it is essential that electrical conductivity measuring in tungsten copper composite materials as heat sink materials. Electrical conductivity is an important indicator to measure ability to conduct electricity of tungsten copper heat sink, which directly affects the final properties of products. The stronger ability to conduct electricity, the smaller electrical resistance, on the contrary, electrical resistance is greater. For hardness testing, if tungsten copper material over-burning, the inside Cu phase will exude and lead…

未分類
Tungsten Copper PIM Degreasing Process 883

After material preparation and injection, the following steps are degreasing and sintering. Degreasing process is also known as forming agent or binder removal, which is the use of physical or chemical methods the added binder (such as alcohol, paraffin and the like) were removed. It needs the longest time of PIM and is the most difficult to control. Improper operation will cause the deformation or uneven component defects of tungsten copper blank, which will affect the final properties of tungsten…

Tungsten Copper
Tungsten Copper Powder Injection Molding Research 875

Based on conventional molding process and combines plastic molding industry technology, PIM (Powder Injection Molding) has excellent applicability in some tungsten copper products with small size and complex shape or structure. So we study from mixing, injection, degreasing, sintering and several key process of tungsten copper powder injection molding, and analyze and summarize the advantages of the process and the defects. The first is the selection of the binder and the preparation of mixture. Binders can reduce caking of the…

Tungsten Copper
Tungsten Copper Sintered Properties 898

Tungsten-copper composite sintered body directly affects the comprehensive performance of final product so that the determination of the relative aspects of density, hardness, conductivity, shrinkage, scanning electron microscopy and crushing strength becomes essential. Next, we will combine the experience of some relevant theoretical principles and production practices as summarized in one by one analysis of the test method. Relative Density Test: It usually uses Archimedes drainage method, which weighs tungsten copper sintered in the air and in distilled water separately…

未分類
Tungsten Copper Composite Power Warm Compacting Process 590

Warm compacting process is a kind of new process of high precision powder metallurgy that develops based on conventional molding process. Compared with conventional process, warm compacting process is in the process of pressing the powder in a conventional method and the mold is heated to a certain temperature after pressing to obtain a high-density powder compacts, which flies high density and high performance sintered body. Generally, the pre-heating temperature is between 100-150℃. Due to it is at the range…

Tungsten Copper
Tungsten Copper Composite Power Injection Molding 600

Inspired from powder injection molding of conventional powder metallurgy (PM), tungsten-copper composite powder injection molding technology is based on the injection of tungsten skeleton is formed, and it breaks the limitations of conventional Infiltration produced tungsten-copper composite. Metal injection molding (MIM) is a kind of process that suitable for fabricating the products with complex or irregular shape, and it was first extended by the plastic injection molding industry. In recent years, a substantial increase in the content of the solid…