valve fracture

The valve work condition and normal failure are studied in this paper. The heat treatment of 21-4N steel exhaust valve is related to the samdwich separated out. The samdwich affects the valve capability 21-4N steel exhaust valve fatigue fracture is caused by thermal overstress.

本文介绍了气门的工作条件、正常失效及21-4N钢排气门强化热处理与层状析出的关系，分析了层状组织对其性能影响和21-4N钢排气门过载断头失效的原因。

It was concluded that brittle fracture of the valve bodyof poor casting quality.

结果表明,该阀体爆裂属脆性断裂,爆裂系截止阀材质、组织及铸造质量差所致.

Therefore, valve will produce a strong shock and a harsh noise, resulting in fracture spool quickly.

所以调节阀会产生强烈的震荡并发出刺耳的噪声, 因而导致阀芯很快断裂.

Analysis on the Fracture of Oil Valve Opereating Rods of Santana Automobile

桑塔纳轿车油门操纵杆断裂分析

The longitudinal fracture arosed in connecting nut for inlet flushing valve.

冲洗阀出现进水端连接螺母纵向断裂.