1、不锈钢风管的电焊焊接，能用非熔融极氩弧焊机；当板才的薄厚超过1.2毫米时，可选用直流电焊机反极法开展电焊焊接，但不可选用氧乙气割电焊焊接。焊丝或焊条材料应与对接焊缝同样，冲击韧性不可小于对接焊缝。

1. The welding of stainless steel ducts can be carried out using a non melting electrode argon arc welding machine; When the thickness of the board exceeds 1.2 millimeters, a direct current welding machine with reverse polarity can be used for electric welding, but oxygen and ethylene gas cutting electric welding cannot be used. The welding wire or electrode material should be the same as the butt weld, and the impact toughness should not be less than that of the butt weld.

2、电焊焊接前，应将焊接地区的植物油脂、废弃物清除整洁，以避免 焊接出現出气孔、沙孔。清理能用车用汽油等开展。

2. Before welding, the vegetable oil and waste in the welding area should be cleaned up to avoid air and sand holes during welding. Clean up and use gasoline for vehicles.

3、用电弧焊接电焊焊接不锈钢板时，应在焊接的两边表面涂上灰岩粉，避免 溅出金属材料黏附在板才的表面损害板才。

3. When welding stainless steel plates with electric arc welding, limestone powder should be coated on both sides of the welding surface to avoid splashing metal material adhering to the surface of the plate and damaging it.

4、电焊焊接后，应留意清除焊接处的炉渣，并且用不绣钢刷或铜线刷一下出金属质感，再用酸洗膏开展磷化处理，后用开水清理整洁。

4. After welding, attention should be paid to removing slag from the welding area, and using a stainless steel brush or copper wire to brush out the metallic texture. Then, phosphating treatment should be carried out with acid pickling paste, and finally cleaned with boiling water.

5、不锈钢的焊接风管应免去在风管焊接以及边沿处开孔。

5. Stainless steel welded air ducts should be exempt from opening holes at the welding and edges of the ducts.

不锈钢风管异型管：除接管之外的管的统称，用低温等离子机激光切割，单机版辘边。短管：同接管表明方式一致A*B*C(A、B为支管，C为长短)，短小编长不确定，依据具体必须而定，eg：500*200*600即支管为500*200长短为600；标准(除基础标准外)：长短。三通：表明方式：A*D～B*D～C*D,(A、B、C为控制面板，D为档板),三通分碟形三通和T形三通，分碟形三通的标准(除基础标准外)：两侧的R值与样子；T形三通的标准(除基础标准外)：R值，长短(测算方法=右边支管+R+100)。

Stainless steel air duct special-shaped pipe: a general term for pipes other than connecting pipes, laser cut with low-temperature plasma machine, and rolled edge with single machine version. Short pipe: The same indication method as the connecting pipe is A * B * C (A and B are branch pipes, C is the length). The length of the short pipe is uncertain and depends on specific requirements. eg: 500 * 200 * 600 means that the branch pipe is 500 * 200 and the length is 600; Standards (excluding basic standards): length. Three way: indication method: A * D~B * D~C * D, (A, B, C are control panels, D is a baffle), three-way is divided into disc-shaped three-way and T-shaped three-way, the standard for disc-shaped three-way (except for the basic standard): R value and appearance on both sides; The standard for T-shaped tees (excluding basic standards): R value, length (measurement method=right branch pipe+R+100).

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