动火作业专项培训PPT文档

《动火作业专项培训PPT文档》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、安全环保部HOTWORK热作业专项培训WELDING焊接andCUTTING打磨WELDINGisaprocessthatjoinsmaterials,usuallymetalsorthermoplastics,bycausingcoalescence.Thisisoftendonebymeltingtheworkpiecesandafillermaterialtoformapoolofmoltenmaterialthatcoolstobecomeastrongjoint,butsometimespressureisus

2、edinconjunctionorbyitself,toproducetheweld.焊接是通过普通金属的热聚合来连接材料的过程。一般通过溶解工件和填充材料来形成一个溶解材料填充池，通过冷却是它变成坚固的连接点，但是有时候也通过压力来造成连接，或者它自身来形成焊缝。DEFINITION定义COMMONTYPESOFWELDING普通的焊接Oxy-Fuelwelding氧气燃料焊接Metalfusionachievedbytheuseofhightemperatureflameproducedbymixtureofgase

3、s.材料通过混合气体燃烧产生的高温火焰来产生连接ManualMetalArc(MMA)Welding手工技术电弧焊Usingfluxcoatedelectrodeswhicharereplacedbytheoperatorastheyareconsumed.NoshieldingmediumisusedinthisProcess.使用由操作手更换的带有外衣的可消耗的焊条，没有保护媒介物。MetalInertGas(MIG)Welding金属惰性气体保护焊Usingaconsumablewireelectrodeandas

4、upplyofinertgas.使用可消耗的金属焊条和惰性气体TungstenInertGas(TIG)Welding钨极惰性气体保护焊Usingatungstenelectrodewhichisnotconsumedandasupplyofinertgas.使用不可消耗的钨极焊条和惰性气体Electricshock电击Fumesandgases烟和气Weldingsparks焊渣Arcrays电弧光GENRALWELDINGHAZARDSHAZARDS焊接中的危害Confinedspace受限空间Generalwork

5、area/Falls总的工作区域/坠落Electricandmagneticfields电气和磁场AreaConditions/Fire工作场所/火灾GENRALWELDINGHAZARDSHAZARDS焊接中的危害电弧焊电极弧焊把线焊机回流作业点8PotentialHazards:潜在的风险Unprotectedcombustiblematerialsexposedtohotwork.在动火作业区域有未保护的可燃材料Fireandexplosionhazards.火灾和爆炸Failuretorecognizeflamm

6、ablematerialssuchasrubber,foaminsulation,wiring,deckcovering,wallboard.对易燃材料错误的判断，例如橡胶、泡沫绝缘，电线、面板敷料，墙板等GeneralHotWorksHazards总的动火作业风险9PotentialHazards:潜在的风险Spark-producingdevicesnotobservedbyuser.未使用火花产生装置。Burningofmaterialscausingtoxicgasesoratmospheres.燃烧的材料产生有

7、毒有害气体oxygen-deficentandoxygenenrichedatmosphereswhileperforminghotwork.动火作业时氧气不足或氧气过分充足。GeneralHotWorksHazards总的动火作业风险10PotentialHazards:潜在的风险Performinghotworkinnon-designatedlocations.在非指定区域动火作业Protectivecoversthathavebeenmoved,becomedeteriorated,contaminated,or

8、unsuitableforthepurpose.因为破损、污损或者工作不合适而移走防护罩Fuellineandoxygenhosebreakage.燃料和氧气的软管破损GeneralHotWorksHazards总的动火作业风险11FactorstoConsider考虑的因素Wetness/Welderinorwor