Multi-layer Co-extrusion Machine
1: Polestar Machinery Can Provide Multi-Layer Co-Extrusion Equipment For The Production Of Multi-Layer Oxygen Barrier Pipes, Glass Fiber Reinforced Multi-Layer Pipes, Multi-Layer Heat Shrink Pipes, Ultra-Quiet Drainage Pipes, Etc.
2: The Multi-Layer Co-Extrusion Pipe Production Line Is Mainly Used To Produce Composite Pipes Such As PE Pipes, PPR Pipes, PERT Pipes, Silicon Core Pipes, Etc., Using Multi-Layer Co-Extrusion And One-Step Forming.
3: The Specially Designed Adjustable Compound Co-Extrusion Head Can Quickly Ensure The Uniform Compounding Of Multi-Layer Plastics And Media, And The Ideal Thickness Of Each Layer Can Be Quickly Obtained Without Adjusting The Extruder Speed.
4: The Special Design Of The Mold Ensures The Low-Temperature Plasticizing Effect, And The Special Temperature Control System In The Core Ensures The Appearance And Quality Performance Of The Co-Extruded Pipe.
5: A Variety Of Control Systems Are Available For Users To Choose From. The Entire Production Line Adopts PLC Programmable Computer Control System To Ensure High-Speed Synchronous Control And Smooth And Reliable Operation Of The Entire Production Line.
Plastic Co-extrusion Machine,Plastic Multi-layer Extrusion line,plastic extrusion machine Zhangjiagang Polestar Machinery Co.,Ltd , https://www.polestarplast.com
Qingdao Hexin Machinery manufactures forged shaft, suchas forged steel shaft, forged high speed transmission gear shafts, forged steel stem crank shaft, carbon steel forged drive shaft, forged drum shaft, hot forged shaft duplex stainless steel, alloy steel power forging axle, forged marine propeller shaft, drive forged steel step shaft and forged turbine rotor shaft.
We follow the strict smelting process: EF+LF + VD+VC, to guarantee the inside quality of the ingot is better.
When it comes to forging process, our forging engineers are very skilled and experienced, the simple  process for open die forging is :
Ingot→heating→ forging → Heat treatment (Normalizing+ tempering) → Inspection
→rough machining→UT → twice Heat treatment →finishing machining →Inspection
The forging process can create parts that are stronger than those manufactured by any other metalworking process.
Process
Open Die Forgings/Â Closed-Die forging
Main products
Heavy Forging Shaft, cylinder, sleeve, ring, drive shaft, marine hardware stanchion, Roller,valves,forging wheels, forging gears, Screw Bearing, gear ring, die-block, flanges, pump, bearing chock.
Materials
carbon steel, alloy steel, tool steel, stainless steel, or customized
Machining:
NC and CNC lathes, CNC milling and turning, grinding, honing, lapping, broaching and other secondary machining
Heat treatment
annealing, normalizing, tempering, nitriding, carbonitriding, carburizing and induction hardening
Surface treatment
Plating, coating, phosphate, anodizing and CVD/PVD plating
Application
Machinery, chemical and petroleum industries, mould, shipping, transportation, agriculture, pipeline, metallurgy, electric generation, boat building, mine industry, etc.
Certificates
3.1B Material Certificates, Dimension report, SGS Certificate available when requeted.
About us
There are more than 60 sets main equipment at present, including two sets of hydraulic forging machines (1600T&4000T), two sets of electro hydraulic hammer (3T&5T), all kinds of air hammers and board drop hammers (1000kg, 560kg, 250kg), 30 sets heat treatment equipment (heavy furnaces and heat Treatment Furnaces) and 30 sets machining equipment with 16m&12m horizontal lathes, 14 sets suspending equipment. We could supply all kinds of free forgings up to 50 Tons including forged shaft, rotor, ring, cylinder, pipe mould and so on. These products have been widely using in machine tool, equipment, mining, railroad, wind power, shipping, automotive and electric power.Â
Products
Packaging
Inspection equipment
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Qingdao Hexin Machinery Co., Ltd.  is a modern, forging plant specializing in heavy forging in a wide variety of sizes to meet the most stringent customer specifications.