日韩毛片精品直接看,国产精品国产三级国产av′,人人澡人人妻人人少妇,日韩不卡不码免费视频,欧美黄色一区二区日本,国产精品久久综合亚洲,日本高清一区二区不卡 ,日韩精品一区二区毛片,日韩精品欧美精品一区二区,日韩一级黄色不卡视频

    Kunshan Youente Precision Mould Co., Ltd.Precision mold parts processing design and manufacturing
    Processing hotline:+86-0512-57980121
    中文版
    Your current location:Home > News > Industry News
    News
    Products

    Processing of stainless steel pipe fittings

    From:原創(chuàng) Click:3016 Date:2020-07-04

    The main production processes of stainless steel pipe fittings are: conventional semi-continuous hot continuous rolling, CSP continuous casting and rolling, medium and heavy plate unit, furnace coil unit. Different processing techniques have good advantages, which can ensure that the stainless steel pipe elbows produced have good function and use.




      Let's first talk about the processing technology method. When processing stainless steel elbows, when tapping to the size of the thread, it may appear that the end surfaces of the two taps collide. The reason is that the base surface of the tap is longer. In this situation, it is necessary to shorten the end face of the tap, but the shortened end face may adversely affect the function of the tap. The relationship between the front and rear taps and the workpiece to be processed can be seen after tapping the end face. The tapped thread part cannot be introduced into the hole normally, but is pressed into the hole by the end face, which affects the function of the tap.




    On the furnace coil mill, the thermomechanical history of stainless steel stamped elbow pipe fittings has changed significantly, especially in the production of micro stainless steel stamped elbow pipe fittings, which will drastically affect the recrystallization level, grain growth and Precipitate, and incur violent changes in the ultimate microstructure and function of the entire length of stainless steel stamped elbow fittings. When grinding, be sure to adhere to the original geometric shape of the front guide, it is best to use a tap shovel grinding machine to stop grinding. The best way to deal with a longer tap base is to customize a tap with a shorter base according to the specific requirements of the thread being processed. In order to extend the service life of taps and improve the quality of thread processing, the following points should be noted. Stainless steel pipe elbow pipe has a good processing technology, and different processing methods are used in processing. At present, the production processes of stainless steel pipe elbow pipe in China are: conventional semi-continuous hot continuous rolling, CSP continuous casting and continuous rolling, medium and heavy plate Unit, furnace coil unit. Different processing techniques have good advantages, which can ensure that the stainless steel pipe elbows produced have good function and use.




      To deal with these problems, some users had to stop grinding the front guide of the tap, and before and after grinding the front guide of the tap. Due to the shape change of the front guide after grinding, the tap function will still be affected. The way to deal with this title is the furnace coil mill: the furnace coil mill includes a reciprocating roughing mill and a 4-roll reciprocating finishing mill. Two hot coil mills were installed on the feed lines on both sides of the finishing mill.


    Last:The key points of Japanese manufacturing transformation Next:Already is the last article
    宝贝几天没c你了好爽菜老板| 99精品视频| 特级毛片A级毛片100免费播放| 免费无码VA一区二区三区| 我故意没有穿内裤坐公车让| 国产精品资源一区二区| 国产精品日本一区二区三区在线| 激情婷婷五月综合基地| 精品日产卡一卡二卡麻豆| 漂亮妈妈中文字幕完整高清视频| 一区二区在线视频日韩| 国产午夜亚洲精品羞羞网站| 国产成人av综合色| 精品国产乱码久久久久夜深人妻| 中文字幕乱码人在线视频1区 | 乱码专区一卡2卡国色天香| 亚洲国产精品一区二区制服| 日本精品一线在线观看| 午夜DJ在线观看高清在线视频WWW| 内射人妻无码色AV| 97精品久久久久久久久精品| 777米奇色狠狠888俺也去| 超碰亚洲国产精品人人人| 春色校园亚洲愉拍自拍| 爽擼18CM又大又粗的雞巴| 99久久精品国产自在首页| 少妇无码太爽了不卡视频在线看| 天天操夜夜夜夜夜操| 国产精品亚洲AV人片| 欧美高清性色生活片免费观看 | 国产精品麻豆乱码一区二区三区| 美乳丰满人妻无码视频| 黄色av网站| 久久99国产精一区二区三区蜜桃| 秋霞网韩国成人理论片免费看| 国产永久免费观看的黄网站| 久国产亚洲精品久久久极品| 亚欧洲乱码视频一二三区| 中国老太婆video| 亚洲一线产区二线产区分布图片| 国产欧美日韩在线观看一区二区|