The tungsten steel nozzle needle valve is precisely customized and processed with a concentricity of 0.001. China PTJ Tungsten Steel produces precision tungsten steel nozzles, tungsten steel needle valves, tungsten steel nozzle needle valves and other precision tungsten steel parts.

Tungsten steel nozzle needle valve, precision tungsten steel shaft, tungsten steel needle bar, China PTJ cemented carbide is produced and processed according to the requirements of foreign customers and friends. Its size specifications are: Φ8*Φ7.6*Φ6*Φ5.2*R0.05~R0.1*SR45*66.5. Tolerance of travel is required for roundness of ±0.001, cylindricity of ±0.001, straightness of ±0.001, coaxiality of 0.004, circle run-out of 0.02~0.003, verticality of 0.012, micro-arc groove R0.2-R0.01~ R0.03 requires mirror polishing to meet dimensional accuracy tolerances.

The good use performance of tool materials depends on the material selection of the core working parts of the manufacturing industry, which is the promotion of the use performance of tool materials by economic and social development. The superhard material tungsten steel produced by powder metallurgy technology has the advantages of high strength, high hardness, wear resistance, corrosion resistance, high temperature resistance, and small linear expansion coefficient. It has good physical stability and is suitable for precision nozzle needle valves. China's PTJ tungsten steel nozzle needle valve is precisely customized and processed to meet the concentricity tolerance of 0.001. The drawing specifications are as follows:

As a Chinese tungsten steel manufacturer, China PTJ Cemented Carbide Manufacturing Co., Ltd. provides precision machining of tungsten steel nozzle needle valves with consistent dimensional accuracy and tolerances of ±0.002, especially to meet the requirements of the row size of precision mechanical parts. The tungsten steel nozzle needle valve produced by China PTJ cemented carbide according to the customer's drawings mainly adopts the following common cemented carbide material parameters:
1. CO content: 10%-20%. ,
2. Density g/cm3: 14.1～14.5.
3. Hardness: 87-92.0HRA. ,
4. Grain size: 0.6-1.2um.
5. Bending strength: 3400-4000MPa. To
6. Elastic modulus GPa: 490.
7. Thermal expansion coefficient 10-6/0C: 5.4. To
8. The external dimensions of the tungsten steel nozzle needle valve are customized according to the drawings, and the accuracy requirements are up to ±0.002.

Link to this article： Tungsten steel nozzle needle valve precision customized processing concentricity 0.001

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PTJ® is a custom manufacturer that provides precision machining and straightening shafting for freshwater and seawater marine applications. All are custom metal fabrication and fastener. Manufacturing capabilities include 5 Axis Precision Machining Copper Parts, gear cutting, CNC milling, CNC Lathing, broaching, CNC drilling, hobbing, honing, and internal and external forming. Other services include finishing, sharpening, grinding, filleting, pointed ends, chamfering, straightening and sawing. The radius keyway is cut according to specifications. The shaft system is processed into S.A.E. J755 standard.

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