News

Similarities between HDPE and LDPE in performance: 1) low water absorption, may not be dried before molding. 2) polyethylene shear sensitive materials that affect the viscosity shear rate is more obvious. 3) large and clear direction shrinkage, warpage products easily. 4) Mount on polyethylene is a crystalline polymer. It directly affects the degree of crystallinity uniform product density distribution so. Requirements of the mold cooling water are arranged as uniformly as possible, so that uniform density to ensure the accuracy of product size and shape.

Hollow profile sheet extrusion line The super thick type hollow profile sheet extrusion machine from Handern can produce 12-20mm thickness hollow profile sheet,the length,width,color,weight can make by customer`s requirement The solution for the production of PP, PE and other materials produce hollow profile sheet, from raw materials to production process control and production efficiency and the finished product,etc. Our outstanding technical ability based on years of research,development and manufacture of hollow profile sheet series machines, we can provide objective suggestions and make the detail project plan data that match your specific needs. Whether it is a single component or a complete production line, Wuhan Handern machinery can supply a highest degree of the machine use life and cost-effectiveness . Wuhan Handern machinery also can provide professional testing for the raw material functions and the products functions according customer`s requirement to ensure that if customer buy our machines that they can directly manufacture and sell the final products to achieve get profit while delivery to save customers' valuable time The whole set hollow profile sheet extrusion machine process the raw material from loading-extruder-die-calibrator-traction unit-cutter,etc key parts of the components all designed and made by us that can guarantee the mechanical products quality stability.20%. Extruder:Special screw design,advanced temperature control system that can ensure the plasticating function and extrusion efficiency,the Outstanding advantage of our machine is energy saving with high efficiency,the same output,the motor power 20% decrease. Die:Good quality alloy die lip and adjustable choke can supply uniform pressure.The high precision die can guarantee the good quality hollow profile sheet Calibration table:Thermal convection system display ensure the high precision calibration and cooling.In hollow profile sheet forming,our company product can achieve high speed forming without use the cooling water system,save a lot of energy,improved the efficiency. Electrical control system:Use PLC control the precision data and optimized the operation characteristics. The solutions of Hollow profile sheet from Wuhan Handern Machinery includes the following main advantages: High efficiency(the production efficiency can make contract and make the full payment after achieve the effective) Production flexible(the sheet thickness and quality is controllable,the same machine with the same die can produce the sheet thickness is 2-6mm) Reliability and stability(more than 300 sets of hollow profile sheet production machine is running all over the world are from Wuhan Handern Machinery Co.,Ltd.,our selling quantity in hollow profile sheet extrusion machine field is the NO.1 in the world) Adaptability(our hollow profile sheet extrusion machine can use recycle material,edge material,crushed material directly production,save more than 30% production cost)

Features of Extrusion extrusion molding production process divided dry and wet. Dry heat and pressure by means of plasticized polymer raw material, by means of a wet solvent plasticized polymer raw material. Thus extrusion materials used in both heating molten polymer material can also be difficult to melt comprises heating a solvent to dissolve the polymer material. Covers a wide range of raw materials available. Press feeding mode, continuous extrusion process is divided and the gap extrusion. Continuous extrusion is a screw extruder, and pressure by the screw conveying material. Gap extrusion plunger extruder. Conveying material by a plunger and pressure. Thus extrusion pressure on the material in a large range of choices. Easy to control product performance. extrusion process control parameters except the extrusion temperature, pressure, velocity, the structural parameters of the extruder, cooling, traction control and other factors will affect the quality of products. These controls can be regulated by a computer, to achieve automatic control. extrusion die and auxiliary vary its products may be continuous tube, films, plates, sheets, wire, rods, nets and profiles. Either produce a single polymer products also can produce compound products. products widely used. extrusion process can be divided according to use molding and extrusion molding products, raw materials preparation. Extruder may be used in the preparation of raw materials used in plastics molding machine, the melt polymer material feeding machine, granulator, etc. Thus extrusion plays an important role in the processing of polymer materials.