Technical Parameters:
sheet 1
Materials of Parallel twin screw and barrelBase Materials | 1)38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3)4Cr5MoSiV1(JIS SKD-61)4)42CrMo(AISI 4140) |
Bimetallic | 1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide |
Tungsten Carbide | Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of9.5% |
Sheet 2
Plastic material applicationPlstic material application | 1)General Plastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(Glass Fiber) 4)Flame-resistant Reinforced Plastics 5)Modified Engineering Plastics 6)All kinds of Mixed Recycled Material(in Scrap orGranule),etc |
Sheet 3
Surface TreatmentHeat Treatment | High Frequency Treatment |
Nitriding treatment(120 Hours) | Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 900-1020Hv(HRC56°-65°) |
Hard Chrome Plating treatment | Thickness of Hard Chrome Plating Layer: 0.05-0.10mm Hardness of Hard Chrome Plating Layer: ≥950HV |
Bimetallic treatment | Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer:HRC55°-72° |
sheet4
Basic informationRoughness of the surface | Ra0.4um |
Linearity of the screw | ≤0.015mm |
Linear axis limit | ≤0.02mm |
Hardness after Hardening & Tempering | HB240-280 |
Fragility of Nitration | ≤Two class |
Basic Alloy Steel Material We use:
Normal Material we use as following:
1.38CrMoAlA(JIS SACM645),
2.Cr12MOV(JIS SKD-11)
3.4Cr5MoSiV1(JIS SKD-61)
4.42CrMo(AISI 4140)
The foreign material we used as following:
1. Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
2. USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
3. Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
4. Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321
5. Hardnesssteel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
6. Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.
Production steps:
CustomeOrder--Product Design(Customer Drawing)—Production FlowArrangement—Material Procurement—Hardening&Tempering—Drilling—RoughTurning—Rough Thread Rolling(Alloy Spray Welding)—Alignment—FineThreadRolling—Mixing—Alignment—High FrequencyTreatment—Alignment—Polishing—Grinding—120 Hours NitridingTreatment—AcidPiclking—Polishing—Chrome Plating—O.D.Grinding—Packaging&Shipping
Processing
Advantages of Parallel twin screw:
--Good plasticization, high productivity, small shear force,stable pressure,less wear and tear and low cost.
--Good at feeding,especially for powder.And also have the superiority inhot temperature-unstability plastic materials and mixture palsticmaterials.
Application of Parallel twin screws:
Parallel twin-screw and barrel is successfully applied in PVCplate,pipe,profile,pellet and so on,at the same time, it solved thetechnical problem of low foaming,high foaming,high filling, wear andcorrosion.
Compare to single screw barrel,
It is better than
single screw barrel in the followings: mix turematerials,exhausting,self-cleaning.
Compare to conical twin screw,
Parallel twin-screw and barrel is widely used in PVC productsprocessing,especially for the production of PVCproducts with the outputover 350Kg /h, because the parallel twin-screw and barrel costs lessthan conical twin-
screw and barrel while it has more maturer technology.
Materials and products:
Our Quality Control:
We strictly control our quality as the ISO 9001:2008. We test our products from the raw materials to final product.
Quality is our main forte and we followvaried industry policies for achieving it. Furthermore,our quality consciousness has ensured that we manufacture premium qualityScrew & Barrel for the clients. We conduct various quality tests onour range that start from the time of procuring raw material till thefinal supply of products. Apart from this,our quality controllerscontinuously check the entire range on different parameters soas toensure its defect-free nature.Our quality testing laboratory iswell-equipped with modern machines and technology that are necessary for bulk production.
Our certificate of ISO 9001:2008
Product show:
Plastic extruder machine parallel twin screw and barrel Specification:
Φ35/2 | Φ45/2 | Φ50/2 | Φ65/2 | Φ80/2 | Φ90/2 |
Φ105/2 | Φ125/2 | Φ130/2 | Φ150/2 | Φ180/2 | Φ200/2 |
About HUACHEN :
Market areas: global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Mid-East