Processing requirements of barrel screw Barrel screw processing technology requirements: (1) Technical requirements for barrel quality: ①The barrel is made of corrosion-resistant and wear-resistant alloy steel. At present, 38CrMoAl, 400 or 45# steel is mostly used in China. ② The cylinder blank should be forged to shape. ③The barrel should be tempered after rough machining, har
Design requirements of double alloy screw barrel The bimetallic screw barrel bimetallic process is a more commonly used process combination product with excellent corrosion resistance and wear resistance in recent years. It adopts HVOF high-speed spraying equipment to melt spray spray the surface of the screw to obtain a densely structured bimetallic screw. ; The bimetallic barrel adopts the me
Parallel double barrel screw specifications Parallel twin screw barrel specifications: ø45/2~ø200/2 Screw structure and compression ratio can be designed according to different products and different accessories. Parallel twin barrel screw technical parameters: quenched and tempered hardness: hb280-320 Straightness of screw: 0.015mm Nitride hardness: hv950-1100 After nitri
Damage reason and repair method of screw barrel of granulator: 1. The twisted screw should be considered according to the actual inner diameter of the barrel, and manufactured according to the outer diameter deviation of the new screw given by the normal clearance with the barrel. 2. After the thread surface of the abrasion screw diameter is reduced, the wear-resistant alloy is thermally
Technical parameters of flat twin screw barrel Technical parameters of flat twin screw barrel: 1. Depth of nitride layer: 0.5-0.8mm 2. Nitriding hardness: hv≥950 3. Nitriding brittleness: ≤2 4. Surface roughness: ra ≤0.4um 5. Screw straightness: not more than 0.015mm 6. The hardness of the chromium plating layer on the surface after nitriding: ≥950hv. 7. Double al
Technical parameters of alloy screw barrel Technical parameters of alloy screw barrel: Processing range: inner diameter Ф20mm-Ф250mm; Effective length: 8000mm; Alloy composition: 88wc/12c0.Crc/25Nicr.XaloY108; Alloy hardness: HRC60°-65°; Surface roughness: R0.4; Screw straightness: 0.015mm; Scope of application: It is suitable for all kinds of spe
Advantages of double alloy barrel screw The double alloy barrel screw is a layer of 1-2mm wear-resistant, corrosion-resistant, high-temperature resistant alloy spray-welded on the inner wall of the barrel. Its effective service life is greatly improved compared with ordinary nitride barrels. It is a high formula for processing PVC calcium powder. , Increase the wear life, the superiority of bim
Advantages of screw and barrel of film blowing machine The screw section of the film blowing machine is a screw groove with a fixed groove depth. In addition to its main functions of mixing, melt output and measurement, it must also provide sufficient pressure to maintain a uniform temperature of the melt and stabilize the flow rate of the molten plastic. If it is long, the mixing effect is goo
