| 摘要 |
PURPOSE: A nut assembly for air-conditioner refrigerant injection test and leakage test is provided to prevent leak by integrally forming a nut and a refrigerant injection pipe. CONSTITUTION: A nut assembly for air-conditioner refrigerant injection test and leakage test comprises a nut(10) and a refrigerant injection pipe(20). The screw nut and refrigerant injection pipe are integrally manufactured. The screw nut is made of synthetic resin. The refrigerant injection pipe is made of a metal material or synthetic resin material. The nut assembly for air-conditioner refrigerant injection test and leakage test installs the refrigerant injection in a nut shaped mold. The nut assembly for air-conditioner refrigerant injection test and leakage test is integrally molded by injecting synthetic resin material into the mold.
|
