Yuhuan CNC Machine Tool Co., Ltd.

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Air conditioner compressor valve plate double-sided grinding thinning

The air conditioning compressor valve plate (usually made of metal, such as stainless steel or alloy steel) uses a double-sided grinding and thinning process, which is a key manufacturing step in improving its performance, reliability, and energy efficiency. This process takes full advantage of the technical advantages of double-sided grinding and is specifically optimized for the special requirements of the valve plate.

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Double-sided grinding and thinning of air conditioner compressor valve plates

Processing equipment: YHDM580B high-precision vertical double-end face grinding machine

Purpose of double-sided grinding and thinning of valve plates
1. Precise thickness control:
Compressors are developing towards higher efficiency and lighter weight. Valve plates need to be thinned as much as possible while ensuring strength (common target thickness 0.8~1.5mm) to reduce reciprocating mass, improve response speed and energy efficiency. Double-sided grinding can precisely control the final thickness tolerance (up to ±0.005mm or even higher), ensuring batch consistency.
Double-sided grinding can precisely control the final thickness tolerance (achievable to ±0.005mm or even higher), ensuring batch consistency.

2. Ensuring ultra-high flatness and parallelism:
The valve plate is the sealing base of the gas valve (intake/exhaust valve plate). Its flatness (usually ≤0.001~0.003mm) directly affects the airtightness. Micrometer-level flatness deviation will cause refrigerant leakage and reduce compression efficiency.
Double-sided grinding simultaneously processes two planes in one clamping, eliminating the cumulative error of single-sided processing, achieving sub-micrometer parallelism, and ensuring tight valve plate fitting.

3. Optimizing surface quality:
Provides a uniform, scratch-free, low-roughness (Ra 0.1~0.4μm) sealing surface, reducing valve plate wear and opening/closing resistance.
Removes micro-deformations, oxide layers, or burrs produced by previous processes (such as stamping, heat treatment).

Double-sided grinding and thinning of air conditioner valve plates is a process that balances "thin, flat, precise, stable" core processes:
✅ Thin : Achieving a millimeter-level ultra-thin structure, contributing to lightweight design;
✅ Flat : Sub-micrometer flatness ensures zero-leakage sealing;
✅ Precise : Nanometer-level surface extends valve plate life;
✅ Stable : High consistency in mass production quality.
This process has become a standard technology in the manufacturing of high-end compressor valve plates, directly determining the energy efficiency and reliability of the compressor