精品多毛少妇人妻AV免费久久,无码任你躁久久久久久老妇,欧洲av无码放荡人妇网站,女高潮大叫喷水抽搐

泰安揚帆數(shù)控科技有限公司為您提供等相關(guān)信息發(fā)布和資訊展示,敬請關(guān)注!
咨詢服務(wù)熱線:
13345281377

新聞資訊

產(chǎn)品

公司新聞

壓力容器自動焊機焊接接頭性能的要求有哪些?

來源:http://meangen.com/  發(fā)布時間:2023-08-24 瀏覽次數(shù):0

為保證耐熱鋼焊接接頭在高溫、高壓和各種腐蝕介質(zhì)條件下長期的運行,壓力容器自動焊機焊接接頭性能應(yīng)滿足下列幾點要求。

To ensure the long-term safe operation of heat-resistant steel welded joints under high temperature, high pressure, and various corrosive media conditions, the performance of pressure vessel automatic welding joints should meet the following requirements.
①接頭的等強性 耐熱鋼接頭不僅應(yīng)具有與母材基本相等的室溫和高溫短時強度,而且更重要的是應(yīng)具有與母材相近的高溫持久強度。
① The high-strength heat-resistant steel joint of the joint should not only have room temperature and high-temperature short-term strength that is basically equal to the base material, but more importantly, it should have high-temperature endurance strength similar to the base material.
②接頭的抗氫性和抗氧化性 耐熱鋼接頭應(yīng)具有與母材基本相同的抗氫性和高溫抗氧化性。為此,焊縫金屬的合金成分和含量應(yīng)與母材基本一致。
② The hydrogen resistance and oxidation resistance of the joint. The heat-resistant steel joint should have basically the same hydrogen resistance and high-temperature oxidation resistance as the base material. Therefore, the alloy composition and content of the weld metal should be basically consistent with the base metal.
山東自動焊接設(shè)備
③接頭的組織穩(wěn)定性 耐熱鋼焊接接頭在制造過程中,特別是厚壁接頭將經(jīng)受長時間多次熱處理,在運行過程中將長期受高溫高壓的作用,接頭各區(qū)不應(yīng)產(chǎn)生明顯的組織變化及由此引起的脆變或軟化。
③ The structural stability of heat-resistant steel welded joints, especially thick walled joints, will undergo multiple heat treatments for a long time during the manufacturing process. During operation, they will be subjected to high temperature and pressure for a long time. There should be no obvious structural changes or resulting embrittlement or softening in each area of the joint.
④接頭的抗脆斷性 雖然耐熱鋼壓力容器大多數(shù)是在高溫下工作,但當壓力容器和管道制造完工后將在常溫下進行設(shè)計壓力1.25倍壓力的水壓試驗。在安裝檢修完后,要經(jīng)歷水壓試驗及冷啟動過程。因此,耐熱鋼焊接接頭亦應(yīng)具有一定的抗脆斷性。
④ Although most heat-resistant steel pressure vessels work at high temperatures, the resistance to brittle fracture of joints will undergo a water pressure test at 1.25 times the design pressure at room temperature after the completion of pressure vessel and pipeline manufacturing. After installation and maintenance, it is necessary to undergo a hydraulic test and a cold start process. Therefore, heat-resistant steel welded joints should also have a certain degree of resistance to brittle fracture.
⑤接頭的物理均一性 耐熱鋼焊接接頭應(yīng)具有與母材基本相同的物理性能。焊縫金屬的熱膨脹系數(shù)和熱導率應(yīng)基本一致,這樣就可避免接頭在高溫運行過程中的熱應(yīng)力。
⑤ The physical homogeneity of the joint is that the welded joint of heat-resistant steel should have basically the same physical properties as the base material. The thermal expansion coefficient and thermal conductivity of the weld metal should be basically consistent, so as to avoid thermal stress in the joint during high-temperature operation.

上一篇:焊絲和焊條在保養(yǎng)上區(qū)別你知道嗎
下一篇:自動點焊機在使用中的作用

天天综合天天爱天天做| 性色欲网站人妻丰满中文久久不卡| 久久青草亚洲av无码麻豆| 好深好爽办公室做视频| 亚洲中文久久精品无码照片| 无码人妻丰满熟妇啪啪网不卡 | 久久综合亚洲色hezyo国产| 成视频年人黄网站免费视频| 一本大道东京热无码| AV喷水高潮喷水在线观看COM| 欧美激情一区二区久久久| 激情综合亚洲色婷婷五月APP| 国产一区二区波多野结衣| 在线 | 国产传媒19精品免费1区2| 男人的天堂av高清在线| 又粗又大又硬毛片免费看| 夹得好湿真拔不出来了动态图| 羞羞视频在线观看| 久久亚洲精精品中文字幕| 国产乱妇无乱码大黄aa片| 久久天天躁狠狠躁夜夜躁2020| 亚洲国产精品综合久久20| 亚洲精品成人网站在线观看| 亚洲人成网线在线播放va蜜芽| 夜夜高潮天天爽欧美| 国产免费a∨在线播放| 欧美激情第1页| 亚洲精品97久久中文字幕无码| 国产精品视频一区二区| 白丝乳交内射一二三区| 欧美成人免费一区二区三区视频| 国语自产偷拍精品视频偷| 国产熟妇另类久久久久| 丰满熟妇乱子伦| 老熟妇仑乱视频一区二区| 国产小U女在线未发育| 久久久久高潮毛片免费全部播放| 又污又爽又黄的网站| 日本sm/羞辱/调教/捆绑视频| 久久精品高清一区二区三区| 99国产精品自在自在久久|