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Product Description With professional device and fine workmanship, each of screw and barrel all made from high quality alloy steel(38CrMoALA), and are chataceterized with high anti-friction, anti-corrsion and long life after nitriding by anion, and it can replace the imported products. Every piece of qualification has strictly carry out the JB/T8538-1997 and ISO9002 standards. Screw type: gradual change, mutant, undaform, double screen, cone,bypass flow, separate flow, exhaust, dowel, variant, blend, double-end, triple head, multi-head, pelletizing and so on. Compression ratio of screw and barrel can be designed according to the various products and formula.
Product Feature 1、Tempering hardness: HB240?to 280? 2、Nitriding hardness: HV850?to 1000? 3、Nitriding deepth: 0.45 to 0.7mm 4、Nitriding brittleness: less than second level 5、Surface roughness: Ra0.4 6、Screw straightness:0.015mm 7、Surface hard Chrome degree after nitriding: be equal or greater than 900 HV 8、Thickness of Chorm plating layer: 0.05 to 0.10mm 9、Alloying deepth: 0.8 to 2.0mm 10、Bialloying hardness: HRC 56 to 65 (alloy adopts nickle base alloy )
Product Specification / Models Specifications for screws and barrel: ?45/90、?45/100、?50/105、?51/105、 ?55/110、?60/125、?65/120、?65/132、 ?68/143、?70/140、?75/150、?80/143、 ?80/156、?92/188。
Application this series of screws and barrels are used in plastic extruders Other Information 1、materials:① 38CrMoALA(JIS SACM645) ② 42CMo(JIS SCM440) ③ 9Cr18MoV ④ CW6Mo5Cr4V2 2、heat treatment 2、1 Nitriding treatment 2、2 Electroplate hard Chrome layer 2、3 High frequency hardening 2、4 Plating anti-corrsion and anti-friction bimetal layer 6、Vacuume hardening
Optional Information - Payment : T/T - Delivery : shipment - Origin : China - Minimum Order : 1 - Packaging : wood box - Samples : Charge
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