2013年9月24日星期二

Retardant fabric is welders security methods

Flame retardant fabric is welders security methods : modern industrial production , although the welding process started relatively late , but it showed an increasing pace of development trend , more and showing irreplaceable advantages , because it casting, forging phase combination makes it increasingly high cost . But contrast , welding work in fires , explosions shocking. I combine many years of work experience, summed up some of the lessons of the accident , the welding job security methods and studies done some summary , mainly as follows:
First, safety knowledge training and learning is to carry out welding work technical support. Construction workers on the one hand, technical requirements , welders must be certified , only after rigorous technical examination apprenticeship , independently. The other is to continuously improve the safety awareness of welders , their own qualities , such as frequent fire of knowledge training for welders , such as fire-fighting for different combustion methods , use of fire extinguishers ; fire and explosion welding process knowledge, such as combustible gas, liquid fire , explosion-proof method , the process of cutting fire technology ; basics of hazardous chemicals , and other substances in the combustion basics .
Second, the safe construction environment is the premise and guarantee to carry out welding work . There is flammable and explosive materials , fire ban area or place does not understand the surrounding environment is not possible to operate these solders parts should be removed and transported to a safe zone for construction operations. If there are flammable, explosive, toxic gases indoor work, should be ventilated until the indoor flammable, explosive, toxic gases exhausted to the outside or density is small , the technical determination on construction sites , in order to ensure safe and reliable after before construction . If the construction site welding conditions bad, but can not be removed with combustible materials , welding materials and must not be removed during the construction , fuel can be processed , such as covered fireproof , water increases the humidity and other ways to achieve the fire safety purposes.
Third, prior to welding the welding object is to ensure that the necessary cleaning an important part of the welding job security . Be sure to investigate the exact circumstances of welding material inside , if the welding material was stored in flammable and explosive liquid substance, it should be cut, cutting , welding operation, the first of these substances to clean , if there is not dissolved solids residue stream object should be clean, then rinse eradication ; if the welding material to store flammable gas, gas to displace the specific actions are available inert gas or water and other substances injected into the weld material in order to achieve the combustible out of the gas replacement purposes. The internal processing clean , be sure to do the welding material and technical determination of the construction site to ensure safety . In addition , the welding point next to the parcel of combustible materials must not be welded , should be removed before work .
Fourth, personal safety is to ensure the safety of an important prerequisite for welding operations . Personal protective measures Flammability class mainly refers to the head , face , eye, ear , respiratory, hands, feet and body such as personal protection. There are dust-proof , anti-virus , anti- noise and anti-high temperature radiation , anti- radiation , anti-UV fabric , anti mechanical trauma. In addition to general welding work wear protective equipment ( such as overalls, gloves, goggles and masks ) , the occasion for special operations , you can also wear a welding cap ventilation to prevent coal dust. Place for highly toxic in case of emergency repair welding operation , can be worn isolated oxygen breathing apparatus, to prevent acute occupational poisoning accidents. To protect your eyes from arc welders harm must be used during welding mask inlaid with special protective lenses , and according to the intensity of different welding current to choose different types of filter chip . Welders should wear light-colored or white canvas overalls and fastened cuffs , collar buttoned , the skin is not exposed, to prevent skin injury. For a long time to work in noisy environments should wear ear protectors to reduce harmful levels of noise on people .
Five , before and after welding the welding material safety checks is to ensure that the importance of safety measures in welding operations . Before welding the welding object whether it is or whether there is pressure sealed to check if there is pressure present , must not operate , they should immediately relief , open the device. Even if all the security checks already done , but also according to site requirements spot welding , welding materials , welding quantity with a certain amount of fire fighting equipment . For complex environment , harsh conditions of the construction site , but you can call fire , laying of water in order to keep on standby, ready to do proactive .
Flame welding work at the end of multifunctional composite fabric , it can not be taken lightly and some welding accidents often occur in the final stages of construction , in the construction of everyone's vigilance is often relatively high, and to the final stage , suddenly relaxed , after established safety measures can not consistently perform , so as to cause a number of serious accidents . So finishing welding operations , should pay attention to the following points: First, the final stage is often after the withdrawal of a number of safety features , there will be some small part of the temporary need to do some fine processing , the workload is very small, but this time can not be sloppy , not trouble, but also safety only after resettlement work . Second, the welding is completed , a timely check welding quality is qualified, whether false welding , weld phenomena , weld pressure , hydraulic capacity whether the target in order to detect the problem before feeding in order to promptly resolve . Also, be sure to wait after soldering soldering material is completely cool before feeding . Third, thorough welding is completed, the workplace should be carefully checked whether there is difficult to find the fire , and would like guards or explain to the officer on duty , etc. , so that they stepped up patrols inspection, if found burning smell , the smell of unusual circumstances, should be promptly reported to the relevant departments and units , to take timely measures .
Therefore, the welding operation , the security involved from the welding technology, welding environment , clean the welding object to the welding job security of individuals and the welding operation inspection before and after welding and many other aspects of objects , should be sources of pollution, transmission, personal protection and other aspects of comprehensive management . Only by constantly sum up experience safe welding practices and good practice, ensure the welding quality of the premise , combined with the actual situation of the development of practical countermeasures against harmful factors, to create a safe , sanitary , comfortable working environment, in order to both to ensure the health of construction workers welding , but also improve the quality of construction and welding operations efficiency .

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