焊機的用途很廣泛。在造船企業(yè)、工礦企業(yè)和各種建筑企業(yè)電焊機都是不可缺少的工具。焊機是用于材料焊接的，在使用時是帶電的，尤其是一些小的施工單位為節(jié)省成本購買便宜的電焊機，在施工現(xiàn)場惡劣的環(huán)境下使用很容易引起觸電、著火、脫焊的現(xiàn)象發(fā)生，會危及人身安全和財產(chǎn)安全。因為焊接質(zhì)量不好也會造成“豆腐渣”工程。所以在選購焊機時要注意以下幾點要求：
Welding machines are widely used. In shipbuilding enterprises, industrial and mining enterprises and various construction enterprises, electric welding machines are indispensable tools. The welder is for welding material, when in use is charged, especially some small construction units to buy cheap electric welding machine in order to save costs, the use of prone to cause electric shock, fire, sealing off phenomenon at the construction site of the bad environment, will endanger the personal safety and property safety. Because the quality of welding is not good, it will cause "bean curd residue" project. Therefore, when purchasing welding machines, we should pay attention to the following requirements:
一、在選購焊機產(chǎn)品時，要到正規(guī)的生產(chǎn)企業(yè)或大商場去選購，并且要選購市場占有率較高的品牌名優(yōu)產(chǎn)品。千萬不要貪圖便宜到小商店去購買，電焊機質(zhì)量無法達到保證。
First, in the purchase of welding products, to regular production enterprises or shopping malls to buy, and to buy a higher market share of famous brand products. Do not covet cheap to small shops to buy, welding machine quality can not be guaranteed.
二、選購時，檢查產(chǎn)品上的銘牌是否有生產(chǎn)廠家的名稱、生產(chǎn)地址、規(guī)格型號、焊接電流調(diào)節(jié)范圍、負載持續(xù)率及輸入電壓電流等一些內(nèi)容，隨后根據(jù)工作需要來確定自己要購買的焊機。
Two, the purchase, check the product nameplate whether the manufacturer's name, address, production specifications, welding current adjusting range and load duration factor and input current and voltage of some
of the content, then according to the needs of the work to determine the machine you want to buy.
三、購買時可以要求經(jīng)銷商提供產(chǎn)品質(zhì)量檢驗報告或合格證。因焊機產(chǎn)品是強制性認證產(chǎn)品，所以購買時一定要確認該產(chǎn)品是否通過“3C”認證。
Three, when buying, you can ask the dealer to provide product quality inspection report or certificate. Because welding machine products are compulsory certification products, so when purchasing must confirm whether the product through "3C" certification.
四、購買時一定要檢查該產(chǎn)品是否有接地螺釘，接地螺釘連接處應(yīng)無油漆，接地良好。機芯是否清潔緣、是否有損壞，以保證使用安全，必要時也可檢測一下。
Four, the purchase must check whether the product has a grounding screw, grounding screw connection should be no paint, grounding is good. Is the movement clean, insulated and damaged to ensure safe use and can be detected when necessary.
五、購買前可以通電檢查一下面板上的開關(guān)操作，轉(zhuǎn)換以及安裝情況，電源指示燈的亮滅，風(fēng)扇是否正常，電源部分是否有異常的振動及蜂鳴聲，是否有異味，外觀上是否有變色等發(fā)熱現(xiàn)象，以保證焊機的質(zhì)量，充分發(fā)揮電焊機的性能。
Five, before the purchase can check the power switch operation under a board, conversion and installation, the power indicator lights off, the fan is normal, if power supply has abnormal vibration and the buzzing sound, whether there is a smell, if there is a color fever phenomenon appearance, in order to ensure the welding quality, full performance use of electric welding machine.
六、如要購買氣體保護焊機，在購買前還要檢查配件是否齊全，送絲機是否有油污，轉(zhuǎn)動是否平穩(wěn)，連接電纜是否匹配外表緣、是否有損壞，以保證電弧的穩(wěn)定性。
Six, if you want to buy gas protectionwelder before buying also check whether the complete accessories, wire feeding machine whether there is oil, the rotation is stable, connecting cable, insulation, whether appearance whether there is damage to ensure the stability of arc.
