一、概述:
防水板接缝较多,放水的关键取决于接缝密封好坏程度。国家常采用的是双焊缝自动热合技术,这一种方法一方面能保证焊接质量,另一方面便于充气检查。
二、隧道防水板焊缝气密性试验仪使用方法:
充气检查方法是将5 mso-hansi-font-family:"Times New Roman"">号注射针与压力表相连接,用打气筒进行充气,当压力表达到0.25Mpa时停止充气,保持15min mso-hansi-font-family:"Times New Roman"">,压力下降在10% "Times New Roman"">以内,说明焊接缝合格。如压力下降过快说明有渗漏,用肥皂水涂在焊缝上,有气泡的地方重新补焊。
DQM-2 "Times New Roman"">针式电动隧道防水板焊缝气密性检测仪
一、概述:
电动隧道防水板焊缝气密性检测仪系沧州中亚试验仪器有限公司依据《铁路隧道防排水技术规范》防水板焊接焊缝气密性检测要求开发生产,该仪器采用充气泵为气源,充气迅速,时间短,操作简便,大大提高了工作效率,也减轻了试验人员的劳动强度,深得隧道施工单位的赞赏。
二、隧道防水板焊缝气密性试验仪技术参数:
1 "Times New Roman"">、电源:AC220V
2 "Times New Roman"">、工作压力:0.25Mpa 自动恒压 "Times New Roman"">(出厂时已设定好,用户无需调整)
3 "Times New Roman"">、外形尺寸:450 "Times New Roman"">×280×300
4 "Times New Roman"">、包装尺寸:570 "Times New Roman"">×380×400
5 "Times New Roman"">、重量:15KG
三、隧道防水板焊缝气密性试验仪使用方法:
1 "Times New Roman"">、将5号注射针刺入要检测的焊缝内,接通电源,打开开关,机器开始工作。
mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">2 "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">、当压力表达到 mso-fareast-font-family:宋体;mso-font-kerning:1.0pt;mso-ansi-language:EN-US; mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">0.25Mpa "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">时自动停止充气,保持 mso-fareast-font-family:宋体;mso-font-kerning:1.0pt;mso-ansi-language:EN-US; mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">15 "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">分钟,压力下降在 mso-fareast-font-family:宋体;mso-font-kerning:1.0pt;mso-ansi-language:EN-US; mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">10% "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">以内,则焊缝合格。如压力下降过快,则有渗漏,用肥皂水涂在焊缝上,有气泡的地方需重新补焊。