Key points of non-magnetic tungsten carbide die tools processing

       One, the definition of non-magnetic tungsten carbide

Non-magnetic alloy refers to cemented carbide materials that are not magnetic or weakly magnetic. The development and production of non-magnetic cemented carbide materials is a significant performance of new cemented carbide materials with excellent non-magnetic properties.

Non-magnetic tungsten carbide, whose main component is composed of WC-Ni-Cr-Ta-Ti-VC, is a non-magnetic or weakly magnetic tungsten carbide material made by powder metallurgy through vacuum sintering at 1300~1450℃. Its alloy composition It does not contain iron, cobalt, nickel, bismuth oxide, silicon oxide, magnesium oxide, cobalt oxide, etc., which can directly or indirectly generate magnetism. It is suitable for making metal magnetic materials, silicon carbide sheets, and magnetic powder materials. And non-magnetic tungsten carbide blades for cutting tools for making magnetic films.

2. Non-magnetic tungsten carbide production process

(Main ingredients: WC+TiC+TaC+Co+VC+……)→fully mix→crush→dry→add forming agent after sieving→dry again→sieving to make a mixture→granulate the mixture, press→die tools and low pressure Sintering→sintered blank→inspection (non-destructive ultrasonic flaw detection)→inspection of blank size accuracy.


Three, non-magnetic tungsten carbide product characteristics

1. Non-magnetic tungsten carbide is made by high temperature and high pressure vacuum sintering at 1300～1450oC. It has good bending strength and high hardness. The stamping and forming die made of non-magnetic tungsten carbide is a few of the service life of the non-magnetic carbide stamping and forming die. ten times.

2. Non-magnetic tungsten carbide stamping and forming die tools will not produce die tools wall fuzzing during the pressing process, and there is no cavity deformation of non-magnetic carbide die tools, and no powder contamination, which can better ensure the dimensional accuracy and dimensional accuracy of the magnetic material blanks. Surface Quality.

3. High hardness: 88.0～92.5 HRA, depending on application requirements.


Fourth, the scope of application of non-magnetic tungsten carbide

1. Suitable for making metal magnetic materials (inductance coils, transformers, relay cores), silicon carbide sheet blanking die.

2. It is suitable for making forming stamping dies for five types of magnetic powder materials: paramagnetic material, diamagnetic material, ferromagnetic material, submagnetic material and diamagnetic material.

3. Cutting tools suitable for making magnetic thin films-non-magnetic tungsten carbide blades.


As an important equipment for industrial production, die tools, especially the durable large-scale production of precision die tools, put forward higher requirements for the use of high-performance cemented carbide die tools. Chengdu Woco Carbide Co.,LTD provide non-standard customized production and processing of cemented carbide die tools materials. Non-magnetic tungsten carbide die tools used for special requirements can also provide customized production and processing.