阀门密封面等离子弧堆焊技术要求 密封面堆焊高度和宽度
公称尺寸 DN |
密封面堆焊高度 ≥ |
密封面堆焊宽度 ≥ |
≤150 | H+(1~2) | B+(3~5) |
>150 | H+(1.5~2.5) | B+(3.5~6) |
注:H──设计高度;B──设计宽度。 |
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