日本一卡二卡四卡无卡乱码视频免费,国产女人aaa级久久久级,亚洲国产在一区二区三区,性色av免费网站

泰安揚(yáng)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(qǐng)關(guān)注!
咨詢服務(wù)熱線:
13345281377

新聞資訊

產(chǎn)品

行業(yè)新聞

山東數(shù)控焊接設(shè)備:鑄件開裂原因有哪些?

來源:http://niuniury.com/  發(fā)布時(shí)間:2024-11-19 瀏覽次數(shù):0

  鑄件開裂的主要原因包括鑄造熱裂紋和晶間裂紋。鑄造熱裂紋是由于鑄件結(jié)構(gòu)或鑄造工藝導(dǎo)致各處凝固速度不同,進(jìn)而產(chǎn)生應(yīng)力,在鑄件凝固后期將鑄件拉裂形成的裂紋。晶間裂紋則是鑄件的微觀組織中沿晶界產(chǎn)生的裂紋,通常由于低熔點(diǎn)物質(zhì)在晶界上發(fā)生偏析,造成部分液體保持到較低的溫度,隨著變形的增加而引起開裂。

  The main causes of cracking in castings include casting hot cracks and intergranular cracks. Casting hot cracks are caused by different solidification rates in various parts due to the structure or casting process of the casting, resulting in stress and the formation of cracks in the casting during the later stage of solidification. Intergranular cracks are cracks that occur along grain boundaries in the microstructure of castings, usually due to the segregation of low melting point substances at grain boundaries, causing some liquids to remain at lower temperatures and leading to cracking with increasing deformation.

04

  此外,鑄件開裂還可能由以下因素引起:

  In addition, cracking of castings may also be caused by the following factors:

  合金雜質(zhì)含量較高:如硫含量較高或硅含量較低,會(huì)導(dǎo)致鋼產(chǎn)生熱脆性,降低韌性和延展性,增加斷裂的風(fēng)險(xiǎn)。

  High impurity content in alloys, such as high sulfur content or low silicon content, can cause thermal brittleness in steel, reduce toughness and ductility, and increase the risk of fracture.

  熱處理不當(dāng):加熱溫度和保溫時(shí)間對(duì)鑄件的組織結(jié)構(gòu)和硬度有重要影響。保溫時(shí)間過短會(huì)導(dǎo)致鑄件在開箱后激冷,造成斷裂。

  Improper heat treatment: Heating temperature and holding time have a significant impact on the microstructure and hardness of castings. A short insulation time can cause the casting to cool rapidly after opening the box, resulting in fracture.

  外力碰撞:在鑄造過程中,強(qiáng)大的外力碰撞會(huì)破壞鑄件組織的連續(xù)性,導(dǎo)致斷裂,特別是在鑄件將要脫模時(shí)。

  External force collision: During the casting process, strong external force collision can damage the continuity of the casting structure, leading to fracture, especially when the casting is about to be demolded.

  鑄件結(jié)構(gòu)問題:不合理的設(shè)計(jì)或壁厚不均勻會(huì)導(dǎo)致鑄件在凝固過程中產(chǎn)生應(yīng)力集中,從而開裂。

  Structural issues with castings: Unreasonable design or uneven wall thickness can lead to stress concentration during solidification, resulting in cracking.

  本文由山東數(shù)控焊接設(shè)備提供幫助,更多的相關(guān)內(nèi)容請(qǐng)點(diǎn)擊:http://niuniury.com希望本文能夠?yàn)槟鷰韼椭?,感謝您的閱讀!

  This article is assisted by Shandong CNC welding equipment. For more related content, please click: http://niuniury.com I hope this article can be helpful to you. Thank you for reading!

上一篇:山東數(shù)控焊接設(shè)備:焊接設(shè)備控制的內(nèi)容和要求
下一篇:

精品久久久久久久中文字幕| 老王亚洲AV综合在线观看| 亚洲熟妇少妇任你躁在线观看无码 | 92国产精品午夜福利无毒不卡 | 国产99久久精品一区二区| 欧美自拍嘿咻内射在线观看| 中文成人无码精品久久久不卡| 国产福利一区二区三区在线视频| 国产精品污www一区二区三区 | 亚洲成人色区| 几个流浪汉一起我会坏掉的| 四虎亚洲精品成人A在线观看| 欧美成人WWW在线观看| 国产精品另类激情久久久免费| 一本一道精品欧美中文字幕 | 日本高清一区免费中文视频| 大香区一二三四区2021| 精东影业传媒MV国产剧能看| 自偷自拍亚洲综合精品麻豆| 亚洲人成网站在线在线观看| 人妻 偷拍 无码 中文字幕| 欧洲美熟女乱又伦av影片| 国产乱子伦精品无码码专区| 国产涩涩视频在线观看| 色欲人妻综合网| 国产成人一区二区三区视频免费| 亚洲AV最新在线观看网址| 国产午夜精华精华精华| 色老板美国在线观看| 国产午夜片无码区在线播放| 精品国产乱码久久久久久鸭王1| 未满十八勿入AV网免费| 人妻中文无码久热丝袜| 专干老肥熟女视频网站| 丝瓜视频在线观看免费| 四川w搡bbb搡wbbb搡| 又白又嫩毛又多15p| 亚洲欧好州第一的日产SUV| 国产精品毛片VA一区二区三区| 欧美白丰满老太aaa片| 大肉大捧一进一出好爽视频|