Under normal circumstances, when die-casting thin-walled castings, the flow resistance in the cavity is large, and the ingate is also thinner in thickness, so it has a large resistance, so it is necessary to have a larger filling specific pressure to ensure that it is needed. Insulation speed. For thick-walled castings, on the one hand, the selected ingate speed is lower, and the solidification time of the metal is longer, and a smaller filling specific pressure can be used; on the other hand, in order to make the casting have a certain Density, also need to have sufficient pressurization specific pressure to meet the requirements. For complex shapes of castings, the filling specific pressure should be higher. In addition, such as the type of alloy, the size of the gate, the mold clamping ability of the die casting machine The power and the strength of the mold should be properly considered. The size of the filling specific pressure is mainly calculated according to the selected ingate speed. As for the pressure ratio of the supercharging pressure, according to the alloy type, the following table values can be selected. When the exhaust condition in the cavity is good and the ratio of the thickness of the gate to the wall thickness of the casting is appropriate, a low pressure ratio can be selected.High Quality CNC Machining Machined Casting Parts.The worse the exhaust condition, the greater the ratio of the thickness of the gate to the wall thickness of the casting. In hours, the higher the pressure ratio, the higher the pressure.
Grey cast iron, ductile cast iron, vermicular cast iron, ADI, common cast steel, alloy steel i, tubes, round steel, stainless steel, nonferrous metal and nonferrous metal, forging, stamping parts
Machining with various processes, Heat treatment:quenching, tempering, isothermal quenching, quenching and tempering, high frequency quenching, surface quenching, carburizing and quenching, local heat treatment,
CNC machining, inner hole milling machine, cylindrical milling machine, plane milling machine, universal tool milling machine, engine lathe, horizontal CNC lathe, vertical CNC lathe, CNC lathe, CNC machining center, the common vertical milling machine, horizontal boring machine, wedm machine tools, electrical impulses
Epoxy coating, zinc phosphide, impregnation treatment, electric galvanized and hot dip galvanized, electrophoresis paint, paint and spray paint, black and blue coating processing, anodized and passivation treatment
Spectrum analyzer, tension tester, hardness tester, three coordinates detector (CMM), caliper, micrometer, dial gauge, microscope, roughness tester, salt spray testing machine, ultrasonic flaw detector, X-ray detection machine, magnetic particle flaw detector, air tightness testing machine, thickness gauge
Auto spare parts, train parts, mining accessories, engineering machinery parts, valves, pipe fittings, construction machinery parts and furniture accessories, agricultural machinery parts
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Our company have a large number of the Quality Control Engineers, and we also have a lot of high precision testing equipment. such as: three coordinate measuring system, spectrograph, Optical Brinell hardness tester, tensile testing machine, air-gauge, Dial bore gauges, Inside Micrometer etc.
1).We are one of the leading manufacturer and exporter with a history of more than 20 years, enjoying an excellent reputation and keep a good relationship with many foreign companies, especially in Japan, Europe, America and Southeast Asia.
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