发布时间:2025-01-31 23:39:49
12Cr1MoV从下图的标准可知是耐热钢,由于加了V,所以等级稍高;焊丝可以用ER55-B2-V、ER55-1CMV、焊丝H08CrMoV,焊条是E5515-1CMV
焊接一般焊前需要预热,焊后需要进行热处理,焊接过程中既容易出现冷裂纹也容易出现热裂纹,所以一定制定好焊接工艺。
热水增压泵一直启动怎么回事啊 压力开关没问题 换了新的还是一直启动是不是泵有问题 求解答
2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49刚装修的厨房发现墙面墙砖有水珠用手摸都是水经査看不是漏水请教一下这到底是怎么回事
2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49 2025-01-31 23:39:49