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Mold design of small expansion port

To ensure dimensional accuracy, but also consider the flexible movement. But the point must be consistent with the slide rail, precision is higher. Also, a small expansion block axial movement to do with the rail, after the die retracts cabinets, so the design of a small expansion slot on the block. Put inside the card and spring (position shown in Figure 4) card slot can be in catching the rail. The expansion of block strength, abrasion resistance and corrosion resistance are higher, and therefore, expansion block material used 38CrMoA1 quenching, nitriding treatment, with high surface hardness, high strength, heat deformation properties. Expansion caused by the eight blocks to prevent assembly errors in the processing block in the non-swelling 'work surface to make the order number. Figure 3 Figure 4 large blocks of small bulge bulging block pieces 4.2 guide the design of the bulge expansion block, and recovery is done on the rail, so rail design is very important. The rail on the strength, wear resistance and corrosion resistance are higher, and therefore, rail materials are also used 38CrMoA1 quenching, nitriding treatment. Inflation by eight block is installed, slide the rail of eight non-working face of the corresponding marked with serial numbers. Rail design shown in Figure 5. : In addition to Liu Qi rail structure in Figure 5 Expansion port diameter as small, to consider the expansion of the block and recovery process in the open position relationship, so the rail structure designed with the full expansion of the block to leave the space required for movement, In addition to the process material. Design a rail slot, expansion of small pieces stuck in the slot, together with the guide axial movement. Slot position is based on expansion and the small axial movement of guide block to determine the radial motion. 4 small bulge where the slide block is shorter than a large block of inflation, because it axial movement with the guide. Symmetrical distribution of eight slide, the angle tolerance is less than or equal to 2, the size and shape of higher precision. Conclusion After 5 ,50-90PVC production and application of dimensional accuracy of die Port Expansion A2007. No. 1 / 2 Total 70/71 of A to the high, stable performance, pipe almost 100% pass rate, reaching the desired results. Expansion ports and other large-diameter mold, this kind of small molds, which can meet the needs of production, production costs are low, for enterprises to create good economic returns. References 【1】 waiting Zengshou. FAN Dong-li. Treatment manual (Volume 1) [M】. Beijing: China Machine Press. 2002. 【2】 National Cheng Kung University first. Mechanical Design Handbook (Volume 1) 【M】. Beijing: Chemical Industry Press, 1997. DesignofminitypebulgingmouldAbstract: towel 50-90mmPVCbulgingmouldisdesignedonthebasisoftheneedofproduction, andthetraitofpipe'ssmallora. smallmovementspaceofmould. Itismadeupofeight-bulgingblockwhichareaveragedinonecircle. Thestructureofmouldandthemouldworkingprocessanddesignofimportantpartaremainlyin - troduced. Keywords: moulddesign; bulgingmould; smallcaliber; eightbul ~ ngblock; Phoenix Education pound thin gills high strontium larva The vegetarian scoop Tun The company specializes in the acquisition of high-Liao: 1. Tungsten scrap steel (carbide) categories: line cutting scrap, end mills, milling, CNC tools, welding tools, PCB drill bits, V-CUT knife, saw blade,ed hardy shop, anvil, pressure cylinders, roll, geological mining tools ( solder film. drilling teeth. cut coal teeth), nozzle, sealing ring, (cold heading, stamping, drawing, drawing) mode the. ,ropa ed hardy, Tungsten steel case, tungsten steel powder 2. Pure tungsten categories: tungsten wire, tungsten wire cutter, tungsten plate, tungsten, tungsten rod, tungsten electrode, tungsten crucible 3. High proportion of categories: mobile phone vibrator, fish catch,gorras ed hardy, shielding materials, with weights, etc. 4. All kinds of scrap high speed steel (from steel): cutter,mac makeup wholesale, saw blade, hob, gear cutter, broaches, boring tools, powder metallurgy high speed steel Tel: 0769.8547192185351792 Tel :0512 -57173005 Fax :0769 -85099046 Fax: 0512 -57,ed hardy suomessa,173,006 South China: Changan, Dongguan City, Guangdong Province Trade City East: Economic Development Zone, Kunshan City, Jiangsu Province http:l/www. cdtungsten. tom network name: 1. Scrap tungsten steel 2. Recycling waste tungsten steel 3. 4 high speed steel scrap. Recovery of high-speed steel 5. PCB Drill

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