GT10 Powder Metallurgy, Metal Injection Molding MIM Parts

Maybe many laymen don't know much about cemented carbide. As a professional cemented carbide manufacturer, Zhongwei Precision will introduce the basic knowledge of cemented carbide to you today. Cemented carbide is known as the "industrial teeth". Its application range is very wide, including engineering, machinery, automobiles, ships, optoelectronics, military industry and other fields. The consumption of tungsten in the cemented carbide industry exceeds half of the total consumption of tungsten. We will introduce it from the aspects of its definition, characteristics, classification and use.

Definition

Cemented carbide is an alloy with tungsten carbide powder (WC) as the main production material and metals such as cobalt, nickel, and molybdenum as binders. The composition is not much different from that of high-density tungsten alloy. Tungsten alloy is an alloy with tungsten as the hard phase and metal elements such as nickel, iron, and copper as the bonding phase.

Characteristics

1) High hardness (86~93HRA, equivalent to 69~81HRC). Under other conditions, the higher the tungsten carbide content and the finer the grains, the greater the hardness of the alloy.

2) Good wear resistance. The tool life of this material is 5 to 80 times higher than that of high-speed steel cutting; the tool life of this material is 20 to 150 times higher than that of steel tools.

3) Excellent heat resistance. Its hardness remains basically unchanged at 500°C, and it is still very high at 1000°C.

4) Strong corrosion resistance. Under normal circumstances, it does not react with hydrochloric acid and sulfuric acid.

5) Good toughness. Its toughness is determined by the bonding metal. The higher the bonding amount, the greater the bending strength.

6) High brittleness. It is difficult to make tools with complex shapes because it cannot be cut.

Classification

According to the different binders, cemented carbide can be divided into the following categories

1) Tungsten-cobalt alloys: the main components are tungsten carbide and cobalt, which can be used to produce tools, molds and mining products.

2) Tungsten-titanium-cobalt alloys: the main components are tungsten carbide, titanium carbide and cobalt.

3) Tungsten-titanium-tantalum (niobium) alloys: The main components are tungsten carbide, titanium carbide, tantalum carbide (or niobium carbide) and cobalt.

According to the different shapes, the base can be divided into three types: spherical, rod-shaped and plate-shaped. The shape of non-standard products is unique and needs to be customized. Xidi Technology Co., Ltd. provides professional brand selection reference.

Preparation

1) Ingredients: Mix the raw materials in a certain proportion; 2) Add alcohol or other media and wet grind in a wet ball mill; 3) After crushing, drying and sieving, add wax or glue and other molding agents; 4) Granulate the mixture, press it, and heat it to obtain alloy products.

Uses

It can be used to make drill bits, cutters, rock drilling tools, mining tools, wear-resistant parts, cylinder liners, nozzles, motor rotors and stators, etc.

If you want to know more about cemented carbide, please follow Zhongwei Precision's official website!

We have provided high-quality cemented carbide products to more than a thousand customers at home and abroad, helping customers solve problems in harsh working conditions. We have a 16-year history; 112+ property patents; 30+ domestic and overseas markets

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. was established in 1997. It is a private joint-stock high-tech enterprise covering an area of ​​54 acres, of which the production and R&D area is 30,000 square meters. We are deeply rooted in the frontier of high-tech, specializing in providing harsh working condition solutions for the global oil and gas drilling, chemical smelting, mechanical engineering equipment manufacturing and other industries

As well as the production and processing of high-end wear-resistant parts, composite components and system integration products.