Abstract: The present invention discloses a rotary wheel airtightness detecting machine which comprises a body frame, an air cylinder, an upper seal, a lower seal, a water tank, an electric motor and a self-made air cylinder, etc. During use, the present invention can make the wheel be automatically centered between the upper seal and the lower seal, avoiding severe abrasion of equipment caused by inclination of the upper pressing plate for sealing upon biased positioning of the wheel.

Abstract: The present invention discloses an apparatus for detecting spring stiffness which comprises a universal material testing machine, a loading beam of the universal material testing machine, a fixing rod of bracket for Belleville spring deformation detection, a movable clamping rod of bracket for Belleville spring deformation detection, a dial gauge, etc.

Abstract: The present invention relates to an integrated equipment for aluminum alloy refining and casting, in which a holding furnace is divided into two furnace chambers, that is, fluid refining chamber and pressure casting chamber. After being refined in the fluid refining chamber, aluminum fluid doesn't contact air so that it will not be reoxidized, enabling manufacture of casts with fine quality. Meanwhile, immersing electric heating is employed in the holding furnace of the present invention to improve the temperature uniformity of aluminum fluid and the heating efficiency. After completing the pressure casting, the inert gas at high temperature will not be discharged directly into the atmosphere but into a gas tank so that it can be reused after being purified, improving utilization rate of resource and energy.

Abstract: The present invention discloses a rotary wheel airtightness detecting machine which comprises a body frame, an air cylinder, an upper seal, a lower seal, a water tank, an electric motor and a self-made air cylinder, etc. During use, the present invention can make the wheel be automatically centered between the upper seal and the lower seal, avoiding severe abrasion of equipment caused by inclination of the upper pressing plate for sealing upon biased positioning of the wheel.

Abstract: The present invention discloses an apparatus for detecting spring stiffness which comprises a universal material testing machine, a loading beam of the universal material testing machine, a fixing rod of bracket for Belleville spring deformation detection, a movable clamping rod of bracket for Belleville spring deformation detection, a dial gauge, etc.

Abstract: The present invention discloses a method for improving mechanical properties of aluminum alloy casting. The advantages of the present invention lie in: combining heat-treatment with thermal painting; dividing the solution treatment of conventional T6 heat treatment process into two separate solution treatments, which avoids deformation and overheating of the casting due to melting of the ternary eutectic structures with low melting point, thereby improving efficiency of the heat-treatment and lowering the amount of energy consumed and the cost of production.