Gearbox gear cold assembly refrigerator cryogenic process can improve the performance of metal materials. Effective and economical technical indicators. During the cryogenic process of martensite, the residual austenite is transformed, and the properties of fine and dispersed carbides change in the material. The ultra-fine carbides that can prevent the movement of dislocations, thereby strengthening the matrix structure and exerting the effect of strengthening the grain boundaries. The following three aspects are improved: impact toughness, wear resistance, and dimensional stability.

업계에서는 일반 열처리 후 재료를 100 ℃ ~ 196 ℃로 추가로 냉각하는 처리 방법을 극저온 처리라고하며, 이는 패럴림픽의 함량을 줄이고 미세 탄화물의 침전을 촉진하며 결정 간 인장 응력을 감소시켜 다음과 같은 거시적 특성을 향상시킬 수 있습니다:

Train mechanical gearbox gear cold assembly refrigerator cold assembly has the following advantages compared to hot assembly and press-fit assembly:
1) Safety: The cold assembly process is safer and more reliable, and the workpiece is not easy to be damaged; the hot assembly process has a high temperature on the site, which can easily cause burns to personnel, and the workpiece can be damaged if pressed into the assembly.
2) Processability: The quality of cold assembly is high, the centering of the workpiece is good, and the bearing capacity is strong; the quality of the hot assembly is not easy to control, the workpiece is easily deformed, and the parts and the base hole are not firmly combined when pressed into the assembly.
3) Operability: The cold assembly operation is simple and convenient, economical and practical; the hot assembly process is complicated, requiring workers to repeatedly check the aperture size, and pressing into the assembly requires that the center line of the hole and the shaft be consistent. Simple operation and convenient maintenance.

The inner wall is made of stainless steel and has a composite thermal insulation structure. The internal airflow structure constitutes a closed circuit cycle and the cooling speed is fast. At present, this technology has been widely used in aerospace, marine, military, manufacturing, automotive, hardware tools, sports equipment and other industries.