(1) Mixing of raw materials: PVC stabilizers, plasticizers, antioxidants and other auxiliary materials are added to the high-speed mixer according to the ratio and process. The materials are heated to the set process temperature by self-friction of materials and then The cold mixer reduces the material to 40-50 degrees; this allows it to be added to the hopper of the extruder.
(2) Extruder part: This machine is equipped with a quantitative feeding device to match the extrusion amount with the feeding amount to ensure stable extrusion of the product. Due to the characteristics of the conical screw, the feeding section has a larger diameter, and the heat transfer area and shearing speed of the material are relatively large, which is beneficial to the plasticization of the material, the screw diameter of the metering section is small, the heat transfer area is reduced and the melt is reduced. The shear rate allows the melt to be extruded at lower temperatures. When the screw rotates in the barrel, the PVC mixture is plasticized and pushed to the machine head to achieve compaction, melting and mixing, and to achieve the purpose of exhausting and dehydrating. The feeding device and the screw driving device adopt frequency conversion speed regulation, which can realize synchronous speed regulation.
(3) Extrusion die part: PVC which is compacted, melted and kneaded and homogenized, and the subsequent material is pushed to the die by the screw. The extrusion die is the formed component of the pipe forming.
(4) The vacuum setting water tank is used for shaping and cooling the pipe. The vacuum shaping water tank is equipped with a vacuum system and a water circulation system for setting and cooling, a stainless steel tank, circulating water spray cooling, and a vacuum shaping water tank with front and rear moving devices and left and right. , high and low adjustment manual device.
(5) The tractor is used to continuously and automatically take the cooled and hardened pipe out from the machine head, and frequency control.
(6) Cutting machine: After the stroke switch is controlled according to the required length, it will automatically cut, and delay the truss, and implement the flow production. The cutting machine will use the fixed length switch signal as the command to complete the whole cutting process, and the pipe during the cutting process. The operation is kept in sync, the cutting process is completed by electric and pneumatic driving, and the cutting machine is provided with a dust suction device to suck out the debris generated by cutting and recover it.
(7) The turning operation of the turning frame is realized by the cylinder through the gas path control. The turning frame is provided with a limiting device. When the cutting saw cuts the pipe, the pipe continues to be conveyed. After the delay, the cylinder enters the work to realize the turning. Action, to achieve the purpose of unloading. After unloading, it is automatically reset after a delay of several seconds, waiting for the next cycle.
Cold Rolled Stainless Steel Coils
Stainless steel plate surface smooth, high plasticity, toughness and mechanical strength, acid, alkaline gas, solution and other media corrosion resistance. It is an alloy steel that does not rust easily, but not absolutely. Stainless steel plate refers to the corrosion resistance of weak medium such as atmosphere, steam and water steel plate, and acid resistant steel plate refers to the corrosion resistance of chemical etched medium such as acid, alkali, salt steel plate.
According to the structure is divided into austenitic stainless steel plate, martensitic stainless steel plate (including precipitation hardening stainless steel plate), ferritic stainless steel plate, and austenitic ferritic biphase stainless steel plate and so on four categories? According to the main chemical composition of the steel plate or some characteristic elements in the steel plate to be classified into chromium stainless steel plate, chromium nickel stainless steel plate, chromium nickel molybdenum stainless steel plate and low carbon stainless steel plate, high molybdenum stainless steel plate, high purity stainless steel plate. According to the performance characteristics and use of steel plate classification, is divided into nitric acid resistant stainless steel plate, sulfuric acid resistant stainless steel plate, pitting stainless steel plate, stress corrosion resistant stainless steel plate, high strength stainless steel plate. According to the functional characteristics of the steel plate, it is divided into low temperature stainless steel plate, no magnetic stainless steel plate, easy cutting stainless steel plate, super plastic stainless steel plate. Currently, the commonly used classification method is according to the structural characteristics of steel plate and steel plate chemical composition characteristics and the combination of the two methods. Generally divided into martensitic stainless steel plate, ferritic stainless steel plate, austenitic stainless steel plate, duplex stainless steel plate and precipitation hardening type stainless steel plate or divided into chromium stainless steel plate and nickel stainless steel plate two categories.
Typical uses: pulp and paper equipment heat exchanger, mechanical equipment, dyeing equipment, film washing equipment, pipelines, coastal area building external materials, etc.
Cold Rolled Stainless Steel Coils,202 Stainless Steel Coil,201 Stainless Steel Coils,Cold Rolled Stainless Steel Coil Sheets
Shandong Xinsuju Steel Co.,Ltd. , https://www.sawlpipe.com