Electric upsetting

2026-07-04 22:33:04 463

The valve undergoes localized upsetting via thermal deformation to achieve a specific upsetting ratio. Following electric upsetting, the fibrous metal grain flow within the valve head aligns with load...

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Hot upsetting

2026-07-04 22:33:36 342

The bolts undergo localized forming via hot deformation; following the hot upsetting process, the fibrous grain flow within the bolt head aligns with load-bearing requirements, thereby enhancing produ...

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Friction welding

2026-07-04 22:34:08 344

Due to the unique operating conditions of exhaust valves, the valve head requires resistance to corrosion and high temperatures, whereas the stem requires excellent wear resistance at moderate tempera...

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High-frequency quenching

2026-07-04 22:34:32 322

The hardness of the valve stem end face is effectively increased, enhancing its wear resistance and significantly improving product quality.

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数控等离子焊机

2026-07-04 22:35:10 313

数控等离子焊接技术避免了人为因素造成的焊接质量问题，大幅提升产品合格率的同时，确保产品质量一致性。等离子堆焊层有优良的抗高温氧化性、耐磨性和耐蚀性，提高气门的使用寿命。

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数控外圆磨床

2026-07-04 22:35:48 288

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