Quality control::품질108 filler metal selection Material with electrode selection Number BASE MATERIAL P.Number ASTM Specification AWS Specification Preheat Temp. C (min) Post heat Temp. C Hardness BHN Max. PIPE TUBE WROUGHT FITTING FORGIN CASTING PLATE Covered Electrode Bare Electrode Preferred Alternate 1 Carbon Steel Carbon Steel 1 A53 A106 A178 A179/192 A234 Gr. WPA/B A181 A105 A 216 A385 A515 E6010 Root E7018 F&F E6013,E7015- E7028 ER70 .. 2016. 2. 17. What is weld metal? Frequently Asked QuestionsWeld metal is the material that has melted and re-solidified as a result of the welding operation. In cases where no filler material is added (resistance, electron beam, laser and some autogenous arc welding), the weld metal has the same composition as the parent material. Where filler materials are added to the weld pool, the composition of the weld metal usually diffe.. 2016. 2. 16. Health and Safety in Welding Frequently Asked Questions In most countries there is extensive legislation assigning responsibilities to employers to take reasonable care of the health and safety at work of their employees (e.g. in the UK the primary legislation is the Health and Safety at Work Act 1974). See also Requirements for Health & Safety information and training Welding is associated with several hazards to health an.. 2016. 2. 15. What is a permit to work? Frequently Asked Questions Situations where a permit-to-work would be appropriate include: High or low voltage electrical work. Work on complex production plant. Work in confined spaces. Work involving naked flames (hot work). Work on roofs. Excavation work. Work on or near asbestos. (This is not an exhaustive list) 작업에 대한 허가가 적합 할 상황은 다음과 같습니다 : 높거나 낮은 전압의 전기 작동 복잡한 생산 공장에서 작업 밀폐 된 공간에서 작업 화기 (.. 2016. 2. 15. What is a confined space? Frequently Asked Questions -a fire or explosion -loss of consciousness of a person due to a rise in body temperature -loss of consciousness arising from gas, fume, vapour, or lack of oxygen, -drowning -asphyxiation from a free-flowing solid. -화재나 폭발 -체온상승에 의한 사람의 의식 상실 -가스 , 연기 , 증기 , 산소 부족 으로 인한 의식 상실 , -익사 -자유 유동성 고체 에서 질식 , In the USA a confined space is defined as a relatively small or restr.. 2016. 2. 14. How should I store gas cylinders? Frequently Asked Questions They should be stored where they are not exposed to physical damage, tampering or where temperatures will not exceed 52 degrees C. Ideally, a lockable store, constructed of non-combustible material such as brick and wire mesh should be provided. Labels should be displayed, indicating the contents of the store (compressed gases, LPG, etc) and prohibiting smoking in the .. 2016. 2. 13. 이전 1 2 3 4 5 6 7 8 ··· 18 다음 반응형