Parallel screw and barrel
(Co-rotating and Counter-rotating)Parallel twin screw and cylinder:)
(Co-rotating and Counter-rotating)Parallel twin screw and cylinder:)
Φ35/2 | Φ45/2 | Φ50/2 | Φ65/2 | Φ80/2 | Φ90/2 |
Φ105/2 | Φ125/2 | Φ130/2 | Φ150/2 | Φ180/2 | Φ200/2 |
Product show:
Twin screws and one barrel
Parallel barrel
Parallel screws
The middle section of parallel twin screws and barrel
Screw tips and barrel feeding hole
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 inbad heat-stability plastic materials and mixture palstic materials.
--Good at feeding,especially for powder.And also have the superiority inbad heat-stability plastic materials and mixture palstic materials.
Compare to single screw barrel,
It is betterthan single screw barrel in the followings: mixturematerials,exhausting,self-cleaning.
Compare to conical twin screw,
Paralleltwin-screw and barreliswidelyusedinPVCproductsprocessing,especially for the production of PVCproducts with the out put over 350Kg /h, because the parallel twin-screw and barrel costs less than conical twin-screw and barrelwhile it has more mature technology.
Application of Parallel twin screws:
Paralleltwin-screwand barrel issuccessfully applied in PVCplate,pipe,profile,pelletandmould,at the same time, it solved thetechnical problem of low foaming,high foaming,high filling,wear andcorrosion.
Materials and products:
Technical Parameters:
sheet 1
| Base 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
| Plstic 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
Heat 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 Barrel/Cylinder: Centrifugal Casting (InlayAlloy) Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer:HRC55°-72° |
sheet4
| Roughness 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 |
Production steps:
Custome Order--Product Design(Custome rDrawing)—Production FlowArrangement—MaterialProcurement—Hardening&Tempering—Drilling—RoughTurning—RoughThreadRolling(AlloySprayWelding)—Alignment—FineThreadRolling—Mixing—Alignment—HighFrequencyTreatment—Alignment—Polishing—Grinding—120HoursNitriding Treatment—AcidPiclking—Polishing—ChromePlating—O.D.Grinding—Packaging&Shipping
Processing screw
Processing screw
Process barrels
Nitrogen Oven
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 forteand we followvariedindustry policies for achieving it.Furthermore,our qualityconsciousness 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 parameter ssoastoensure its defect-free nature.Our quality testing laboratory iswell-equipped with modern machines and technology that are necessary forbulk production.
Our certificate of ISO 9001:2008
Our certificate of ISO 9001:2008
About HUACHEN :
Our Strength: Wehaveanexperienceofmorethan 20 year of manufacturinganddesigningPlasticmachines,variedScrews and Barrels andspares. Weconcentrateonimprovingquality,updating design and enhancingservice.
Our products:Screws Barrels for Injection, Extrusion, and Blow Molding applications; relevant accessories(such as die head, gearbox, filter screen changer and so on); plastic processing machinery.
Location advantage: Near Ningbo/Shanghai Port.
Market areas: global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Mid-East
We promise: We assure the customer benefits, provide competitive price, emphasis On Cooperation.
HUACHEN COMPANY
Please contact us,if you have any questions. Mail,phone,skype all are OK.
Myskype:lillianyao0421
