9397至尊品牌源于信誉


 

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高级别Q345c钢板的火焰切割方法
高级别耐磨钢的火焰切割方法与普通低碳和低合金钢的切割一样简单,在切割耐磨钢厚板时,需要注意!!!随着Q345c钢板厚度和硬度的增加,切割边部出现裂纹倾向加大。为防止钢板切割裂纹的产生,切割时应遵循以下建议:  
 切割裂纹:钢板切割裂纹类似于焊接时产生氢致裂纹,如果钢板切边产生裂纹,将会在切厚48小时至几周内才出现。因此,切割裂纹属于延迟性裂纹,钢板厚度和硬度越大,出现切割裂纹就越大。  

 预热切割:预防钢板切割裂纹最有效的方法,就是在切割前进行预热。在进行火焰切割前,钢板通常都要预热,其预热温度高低主要取决于钢板质量等级和板厚,预热方法可采用火焰烧枪、电子加热垫进行的,也可以使用加热炉加热。为确定Q345c钢板预热效果,应在加热点被面测试所需温度。  

 ZHUYI:YURETEBIEZHUYI,YAOSHIZHENGGEGANGBANJIEMIANJUNYUNSHOURE,YIMIANJIECHUREYUANDEQUYUCHUXIANJUBUGUOREXIANXIANG。  

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 TEBIESHUOMING:JIANGYUREHEDISULIANGZHONGHUOYANQIEGEFANGFAJIEHESHIYONG,KEYIJINYIBUJIANGDIQIEGELIEWENDECHUXIANJILV。  

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 QIEGEHOUJIAREYAOQIU:DUIYUNAIMOGANGBANDEQIEGE,QIEGEHOULIJICAIQUJIARE(DIWENHUIHUO),YESHIYUFANGQIEGELIEWENDEYOUXIAOFANGFAHECUOSHI。GANGBANQIEHOUTONGGUODIWENHUIHUOCHULI,KEYIYOUXIAOXIAOCHUQIEGECANYUYINGLI(DIWENHUIHUOGONGYI;BAOSHISHIJIANAN5min/mm)  

 DUIYUQIEGEHOUJIAREDEFANGFA,YECAIYONGRANSHAOQIANG、DIANZIJIARETANHEJIEAIRELUDEJIAREFANGSHIJINXINGQIEGEHOUDEJIARE。

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