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1, die-parametric tester, primary, secondary and boost conversion point in time, 2, pressure die casting starting point impact on the quality of: After the initial stage filling 80%, for two and boost start transition point in time, and finally holding pressure, otherwise it will affect the quality. 3, injection plunger wear blocked shot poor impact on the die-casting parameters; 4, injection chamber and the punch wear analysis of the causes: With the degree of the injection chamber and the punch gap is less than 0.1 mm, a punch and a pressure chamber and forth wearing high temperatures generated by friction, pressure chamber larger diameter, smaller punch, the punch scrap aluminum stuck, impact pressure chamber transfer speed and pressure and refused to accept the force to punch so to use high-temperature lubricants, plunger will open cooling water, but also to choose the punch material, generally used in ductile iron or bronze, etc..

Pressure casting is special casting method in modern metal processing technology developed rapidly in a few non-cutting. It is the process of molten metal at high speed under high pressure mold filling, solidification and formed at high pressure castings. High voltage high speed is the main characteristic pressure casting. Commonly used pressure of dozens MPa, filling speed (ingate speed) is about 16 to 80 m / sec, the molten metal filling the mold cavity a very short time, about 0.01 to 0.2 seconds. Since this method of producing products with high production efficiency, simple process, high casting tolerance level, good surface roughness, high mechanical strength, can save a lot of machining processes and equipment, conservation of raw materials, etc., so now become in China's foundry industry is an important part. Die-casting process is the three elements of die casting machine, die casting mold and alloy composition and be organically integrated use in the process. The die-cast metal pressing process to fill the cavity, and is the pressure, speed, temperature and time and other process factors to obtain a uniform process. At the same time, these technical factors and influence each other, mutual restraint, and complement each other. Proper selection and adjustment of these factors make it coherent, in order to obtain the desired results. Therefore, in the die-casting process not only pay attention to the process of casting structure, die-casting mold progressiveness, die-casting machine performance and excellent resistance structure, die-casting alloy smelting process chosen adaptability and normative; more should pay attention to the pressure, temperature and time and other parameters important role in casting quality. In the die-casting process should focus on effective control of these parameters.

Alloy die castings used mainly non-ferrous alloys, as ferrous metals (steel, iron, etc.) As the mold material and other issues, less use. The colored aluminum alloy die castings again using more extensive, followed by zinc alloy. Following is a brief look at the situation of non-ferrous metal die-casting. (1), classification die-casting non-ferrous alloys hindered shrink shrink shrink freely mixing lead alloy ----- 0.2-0.3% 0.3-0.4% 0.4-0.5% low-melting alloy solder alloy zinc alloy -------- 0.3 -0.4% 0.4-0.6% 0.6-0.8% 0.5-0.7% LAS --0.3-0.5% 0.7-0.9% copper aluminum-magnesium alloy die-colored aluminum alloy aluminum --- 0.5-0.7% 0.7-0.9% 0.9-1.1% refractory alloy aluminum and zinc based alloys ---------- 0.5-0.7% 0.7-0.9% 0.9-1.1% Cu alloy (2), the average temperature of the wall thickness of the casting of various types of die-cast alloy castings species recommended ≤3mm casting average thickness> 3mm simple structure and a simple structure complicated complex structure Aluminum Al-Si 610-650 ℃ 640-680 ℃ 600-620 ℃ 610-650 ℃ Aluminum copper 630-660 ℃ 660-700 ℃ 600-640 ℃ 630-660 ℃ Aluminum-magnesium 640-680 ℃ 660-700 ℃ 640-670 ℃ 650-690 ℃ Aluminum zinc 590-620 ℃ 620-660 ℃ 580-620 ℃ 600-650 ℃ Zinc alloy 420-440 ℃ 430-450 ℃ 400-420 ℃ 420-440 ℃ Magnesium alloy 640-680 ℃ 660-700 ℃ 640-670 ℃ 650-690 ℃ Copper alloy ordinary brass 910-930 ℃ 940-980 ℃ 900-930 ℃ 900-950 ℃ Silicon brass 900-920 ℃ 930-970 ℃ 910-940 ℃ 910-940 ℃ * Note: ① generally casting temperature of molten metal holding furnace to a temperature measurement. ② zinc alloy casting temperature must not exceed 450 ℃, in order to avoid coarse grains.

In the end of December of 2014, my factory has successfully establish the cooperation with "VESTEL" company which is the one largest company in Turkey. The "VESTEL" company possesses employs approximately 16,000. Specializing in the production of household appliances. Now we start cooperation from the Aluminum die casting LED road light and LED street light.