Shallow complaint aluminum alloy pipeline has what unique advantages

Cast aluminum alloys have the same alloy system as deformed aluminum alloys, and have the same strengthening mechanism as deformed aluminum alloys (except for strain strengthening). Their main difference is that the large amount of alloyed element silicon in the cast aluminum alloys exceeds the amount of silicon in most deformed aluminum alloys. Cast aluminum alloys must contain a sufficient amount of eutectic elements (usually silicon), in addition to strengthening elements, to give the alloy considerable fluidity and ease of filling the shrinkage cracks in the casting.

Aluminum alloy pipeline products of good quality: casting size accuracy, generally equivalent to grade 6~7, even up to grade 4; Good surface finish, generally equivalent to 5~8 level; The strength and hardness are higher. The strength is generally 25~30% higher than that of sand mold casting, but the elongation is reduced by about 70%. Stable size and good interchangeability; Die-cast aluminum thin-walled complex castings. For example, the current zinc alloy die-cast aluminum wall thickness up to 0.3mm; Aluminum alloy casting up to 0.5mm; The casting diameter is 0.7mm. The small pitch is 0.75mm.

Shrinkage of aluminum castings generally results in the thickest part of the riser root near the inner runner, the thickness of the wall and the thin wall with large plane. In the cast condition, the fracture is gray, and the light yellow after heat treatment is pale, pale yellow or gray black, which is in the form of cloud and mist on the X-ray film.

Dalian aluminum alloy pipeline water supply system will be water from the outside of the water main, roof cistern, or underground water main to the house all sanitation devices (such as washing tank, shower head, toilet), and washing machine, washing machine and other appliances. The main pipe is connected to the water supply system of the house near the boundary of the residence, where there is a meter and a valve, or just a stopcock.

Water is delivered under pressure to the water supply system of the house. Although the pressure varies greatly from high to low, the normal pressure is about 3.5kg/cm2, while the pressure of Taiwan water supply is set at 1.5kg/cm2. Nevertheless, different water delivery pressures may occur at different time periods.