神马av_日韩第一页_免费精品一区_神马AV_神马久久久久久久久_日韩无码第一页_色哒哒_无码人妻熟妇av又粗又_国产69久久久欧美黑人A片_日韩欧美亚洲_无码第一页_神马午夜精品91_无码人妻熟妇av又粗,日韩免费人妻无码专区蜜桃,亚洲阿大香蕉,欧美亚洲男人天堂,国产无码精品一区二区,揉着我的奶从后面进去视频,免费全部黄A片免费播放软件,国产色中色,免费看的久久久久,天美传媒部在线观看,久久久久久亚洲综合,大香蕉日韩成人在线视频,久久无码潮喷A片无码高潮动漫,精品久久亚洲熟女,国产欧美精品aaaaa久久,直男国产飞机杯,我的公把我弄高潮了视频,免费的精品一区二区三区片,国产日韩欧美三级,亚州A级片,自拍偷拍亚洲porn,少妇水多A片太爽了,日本久操,成人午夜福利无码不卡视频,国产一区二区不卡亚洲涩情,日韩欧美亚洲综合久久,国产亚洲精品久久孕妇呦呦你懂,国产又粗又长又大精品A片,自偷自拍亚洲综合精品第一页,亚洲欧美熟妇久久久久久久久 ,香蕉视频操逼奶子

1、不銹鋼風管的電焊焊接，能用非熔融極氬弧焊機；當板才的薄厚超過1.2毫米時，可選用直流電焊機反極法開展電焊焊接，但不可選用氧乙氣割電焊焊接。焊絲或焊條材料應與對接焊縫同樣，沖擊韌性不可小于對接焊縫。

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、電焊焊接前，應將焊接地區的植物油脂、廢棄物清除整潔，以避免 焊接出現出氣孔、沙孔。清理能用車用汽油等開展。

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、用電弧焊接電焊焊接不銹鋼板時，應在焊接的兩邊表面涂上灰巖粉，避免 濺出金屬材料黏附在板才的表面損害板才。

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、電焊焊接后，應留意清除焊接處的爐渣，并且用不繡鋼刷或銅線刷一下出金屬質感，再用酸洗膏開展磷化處理，后用開水清理整潔。

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、不銹鋼的焊接風管應免去在風管焊接以及邊沿處開孔。

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

不銹鋼風管異型管：除接管之外的管的統稱，用低溫等離子機激光切割，單機版轆邊。短管：同接管表明方式一致A*B*C(A、B為支管，C為長短)，短小編長不確定，依據具體必須而定，eg：500*200*600即支管為500*200長短為600；標準(除基礎標準外)：長短。三通：表明方式：A*D～B*D～C*D,(A、B、C為控制面板，D為檔板),三通分碟形三通和T形三通，分碟形三通的標準(除基礎標準外)：兩側的R值與樣子；T形三通的標準(除基礎標準外)：R值，長短(測算方法=右邊支管+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).

以上的精彩內容來自：濟南通風管道更多精彩內容請點擊我們的網站查看更多：http://www.xmxdgg.com

The above exciting content comes from: Jinan ventilation ducts. For more exciting content, please click on our website to view more: http://www.xmxdgg.com