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Solder contact technology design
From;  Author:Stand originally
One, what does the contact form of welding rod arc welding basically have?
The basic form of connect of welding rod arc welding has 4 kinds: Butt joint connect, horn receives contact, T form connect and lap joint.
(1) evener to receiving contact to get power, solder quality assures easily, application is the widest, should preferential choose.
(2) horn receives contact and T form connect to get force case relatively butt joint connect is complex, but contact shows right angle or form of these two kinds of connect must be used when proper point of view. They suffer the stress state similar when outside force, can choose according to actual condition.
(3) when lap joint gets power, welding line is in concentration of easy generation stress and add turn quadrature, should avoid to choose commonly. But must not open groove because of its, assemble before solder convenient, not big to getting power planar join also can be chosen.


2, what does the groove form of welding rod arc welding basically have?
The basic form of groove of connect of welding rod arc welding has I form, V form, U form and X form to wait. I form groove basically is used at what ply is 1~6 Mm armor plate to solder; V form groove basically is used at ply to be the weldment of armor plate of 3 ~ 26 Mm; U form groove basically is used at what ply is armor plate of 20 ~ 60 Mm to solder; X form groove basically is used at what ply is armor plate of 12 ~ 60 Mm to solder, need double-faced apply solder.



3, how are connect of welding rod arc welding and groove form chosen in actual production?
Solder the choice of contact and groove form, should written guarantee according to soldering ply of demand of form form, dimension, circumstance getting power, strength, weldment, solder method and groove treatment are difficult the element such as easy degree decides integratedly
Thickness should avoid to differ as far as possible when soldering very big plate solders, so that obtain high grade solder contact. When must be being used, in thicker board on should machine piece transfer form.



4, solder when contact craft is designed, of welding line decorate what problem should note?
Welding line decorates answer commonly from undermentioned regard of a few respects:
(1) facilitate assemble and apply position of solder welding line to must have enough operation space to solder in order to satisfy fortune need. When welding rod arc welding, welding rod beard can extend the place that wait for solder. When spot welding and seam welding, requirement electrode can extend the place that wait for solder. When the solder that bury arc, place of the connect when asking to apply solder should facilitate deposit welding flux.
(2) be helpful for decreasing welding stress and be out of shape the design solders when the structure, answer to choose the board with measurement bigger standards, profile and tubal capable person as far as possible, appearance can use stamping workpiece and cast steel complexly, in order to reduce welding line amount, simplify solder craft and the strength that increase a structure and stiffness. In the meantime, welding line is decorated should decorate symmetrically as far as possible (graph 1434) , be out of shape in order to reduce.
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