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焊工职业健康知识 | 2012-9-9 8:40:00

一、职业危害告知:
1.焊工作业过程中存在粉尘、有毒气体、高温、电弧光、高频电磁场等职业危害;
2.当吸入的粉尘达到一定数量时即可引发电焊工尘肺病,且常伴随锰中毒、氟中毒和金属烟雾热等并发病,还可引起鼻炎、咽炎、支气管炎、皮炎、皮疹、眼结膜损害等;
3.焊接产生的弧光主要包括红外线、可见光和紫外线。其中紫外线主要通过光化学作用对人体产生危害,它损伤眼睛及裸露的皮肤,引起角膜结膜炎(电光性眼炎)和皮肤胆红斑症;
4.焊接作业过程中,在焊接电弧所产生的高温和强紫外线作用下,弧区周围会产生大量的有毒气体,如臭氧、一氧化碳、氮氧化物等:
a.臭氧,为无色、有特殊的刺激性气味的有害气体,它对呼吸道粘膜及肺有强烈的刺激作用。短时间吸入低浓度(04mgm3)的臭氧时,可引起咳嗽、咽喉干燥、胸闷、食欲减退、疲劳无力等症状,长期吸入低浓度臭氧时,则可引发支气管炎、肺气肿、肺硬化等;
b.一氧化碳,为无色、无味、无刺激性气体,它极易与人体中运输氧的血红蛋白相结合,而且极难分离,因而,当大量的血红蛋白与一氧化碳结合以后,氧便失去了与血红蛋白结合的机会,使人体输送和利用氧的功能发生障碍,造成人体组织因缺氧而坏死;
c.氮氧化物,是有刺激性气味的有毒气体,其中常接触到的氮氧化物主要是二氧化氮。它为红褐色气体,有特殊臭味,当被人吸入时,经过上呼吸道进入肺泡内,逐渐与水起作用,形成硝酸及亚硝酸,对肺组织产生剧烈的刺激与腐蚀作用,引起肺水肿。

Re:焊工职业健康知识 | 2012-9-9 8:41:44
章仁根二、职业健康防护:1.焊工作业应在专用工作区域内进行,区域内不得有其他工种作业人员;2.工作前,首先要开动通风设备或打开窗户,使工作区域空气流通,并正确佩戴如下劳动防护用具:a.焊工防护服;b.焊接面罩;c.焊工手套;d.防尘口罩;3.多人焊工作业时要分散作业,严禁多人扎堆焊接作业; 4.按时、按要求进行体检。
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原创 | 2016-9-6 17:00:20
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原创 | 2016-9-28 16:35:36
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原创 | 2016-9-30 11:11:50
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Re:在漫画中识别身边的违章 | 2016-10-10 3:16:27
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Re:在漫画中识别身边的违章 | 2016-10-11 14:17:37
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Re:在漫画中识别身边的违章 | 2016-10-14 17:59:38
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Re:在漫画中识别身边的违章 | 2016-10-15 21:01:40
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Re:在漫画中识别身边的违章 | 2016-10-17 1:40:57
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Re:在漫画中识别身边的违章 | 2016-10-17 1:50:09
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Re:在漫画中识别身边的违章 | 2016-10-17 4:09:03
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Re:在漫画中识别身边的违章 | 2016-10-22 12:15:34
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Re:在漫画中识别身边的违章 | 2016-10-22 14:03:06
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Re:在漫画中识别身边的违章 | 2016-10-22 23:36:07
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By:eswae(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复
Re:在漫画中识别身边的违章 | 2016-10-23 4:42:37
igyae(游客)http://www.esafety.cn/blog/wll/66030/archives/2011/114804.html
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By:igyae(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复
Re:在漫画中识别身边的违章 | 2017-2-19 21:49:30
puxuw(游客)http://wen.28.com/article/59340
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By:puxuw(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复
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