973理论片235影院9I国产99亚洲I激情五月在线观看I中文字幕日韩有码I免费电影播放I国产高清一

Purpose

1. Production of rigid PVC products: plastic PVC sheet, medical PVC sheet, PVC magnetic card substrate, PVC poker card material, PVC clock sheet, colored PVC sheet, etc. 

2. Production of semi-rigid PVC products: semi-rigid PVC tape, inkjet cloth, advertising materials, light box cloth, decorative  materials (wood grain film), etc. 

3. Production of soft PVC products: soft PVC tape, various inflatable toys, raincoat materials, salt film, plastic film materials,  home textile packaging, etc.

RAW MATERIAL AND HARDENING REQUIREMENTS

Material：

38CrMoAIA (1.8509)，42CrMo，41CrAlMo7；Stainless steel 316，316L，316Ti，9Cr18Mo,9Cr18MoV ,Hastelloy C276,C4, M2,SKD61, (H13) SKD11 (D2),K110, Inconel 625

Heat treatment method: Nitriding treatment,Surface hardness: HV≥900[HRC≥68].Nitriding depth: 0.6-0.8mm.

Surface coating treatment, Depth: 0.02-0.15mm.

High-frequency quenching treatment, overall hardening.Hardness(HRC): 55-65

Bimetallic screw and barrel series: Iron-based alloy(HT2TJ). Hardness(HRC) : 58-60 Nickel base alloy(HT6NJ).Hardness(HRC):53-56 lron-based alloy with tungsten, carbide(HT3W). Hardness(HRC):58-60 Nickel base alloy with tungsten carbide(HT5JW).Hardness(HRC):55-58 Superhard alloy(HT9TT).Hardness(HRC):62-65

PROCESSING

Nitride screw processing：Book material → Heat treatment(quenching and tempering) → Rough machining → Heat treatment(setting) → Finishing machining → Rough milling → Heat treatment(Nitride hardening) → Finishing milling → Inspection → Delivery.

Bimetallic screw processing：Book material → Heat treatment (quenching and tempering) → Rough machining → Heat treatment(setting) → Finishing machining → Flight spray and melt bimetallic alloy → Rough milling → Inspection → Heat treatment(Nitride hardening) → Finishing milling → Inspection → Delivery

Nitride barrel processing：Book material → Rough machining (inner diameter) → Heat treatment(quenching and tempering) → Finishing machining → Rough miling → Heat treatment (Nitride hardening) → Finishing milling → Inspection → Delivery.

Bimetallic barrel processing：Book material → Rough machining(inner diameter) → Bimetallic alloy casting(inner diameter) → Finishing machining → Finishing milling → Inspection → Delivery.

Purpose

1. Production of rigid PVC products: plastic PVC sheet, medical PVC sheet, PVC magnetic card substrate, PVC poker card material, PVC clock sheet, colored PVC sheet, etc. 

2. Production of semi-rigid PVC products: semi-rigid PVC tape, inkjet cloth, advertising materials, light box cloth, decorative  materials (wood grain film), etc. 

3. Production of soft PVC products: soft PVC tape, various inflatable toys, raincoat materials, salt film, plastic film materials,  home textile packaging, etc.