閥門毛坯的選擇原則與機械加工餘量-資訊--格業閥門有限公司_鸭脖电竞

yabo官网【yabopk10.com】:https://business.sohu.com/20160308/n439685530.shtmlyabo官网【yabopk10.com】:https://finance.sina.com.cn/stock/relnews/hk/2019-08-28/doc-ihytcitn2643045.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7sKA7sMD0QTyabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2020-03-21/doc-iimxxsth0652087.shtmlyabo官网【yabopk10.com】:https://news.online.sh.cn/news/gb/content/2019-06/21/content_9316991.htmyabo官网【yabopk10.com】:http://paper.people.com.cn/zgjjzk/html/2009-10/19/content_364188.htmyabo官网【yabopk10.com】:https://news.hexun.com/2019-05-16/197215936.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/20131017/132817023893.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7mjDwUmMh7eyabo官网【yabopk10.com】:https://sports.qq.com/a/20101221/000241.htmyabo官网【yabopk10.com】:https://tech.china.com/news/11146418/20160828/23403995.htmlyabo官网【yabopk10.com】:http://finance.qq.com/a/20100909/002641.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-05-16/doc-ihvhiqax9181837.shtmlyabo官网【yabopk10.com】:https://tech.china.com/news/11146418/20160828/23403995.htmlyabo官网【yabopk10.com】:https://tech.china.com/news/11146418/20160828/23403995.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-10-11/doc-iicezzrr1576363.shtml?source=cj&dv=2yabo官网【yabopk10.com】:http://finance.qq.com/a/20100909/002641.htmyabo官网【yabopk10.com】:http://games.sina.com.cn/y/n/2017-11-07/fynmnae2587926.shtmlyabo官网【yabopk10.com】:http://jingji.cntv.cn/20110524/103093.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-01-29/doc-ifyqyqni4708162.shtml?source=cj&dv=1yabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-12-11/doc-iihnzhfz5221385.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-12-11/doc-iihnzhfz5221385.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-12-11/doc-iihnzhfz5221385.shtmlyabo官网【yabopk10.com】:http://www.hainan.net/hnews/kdzrb0/100a4775458.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-10-11/doc-iicezuev1529798.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2017-04-17/doc-ifyeimzx6659503.shtmlyabo官网【yabopk10.com】:https://finance.sina.com.cn/stock/hkstock/ggscyd/20100908/15128624052.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7mjDwUmMh7eyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-07-24/doc-ihytcerm5860728.shtmlyabo官网【yabopk10.com】:https://sports.qq.com/a/20131018/005391.htmyabo官网【yabopk10.com】:http://finance.ce.cn/rolling/201603/08/t20160308_9343027.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-07-24/doc-ihytcerm5860728.shtmlyabo官网【yabopk10.com】:http://jingji.cntv.cn/20110524/103093.shtmlyabo官网【yabopk10.com】:https://business.sohu.com/20160308/n439685530.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/20131017/132817023893.shtmlyabo官网【yabopk10.com】:http://finance.ce.cn/rolling/201603/08/t20160308_9343027.shtmlyabo官网【yabopk10.com】:https://news.hexun.com/2019-05-16/197215936.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-01-29/doc-ifyqyqni4708162.shtml?source=cj&dv=1yabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-10-11/doc-iicezuev1529798.shtmlyabo官网【yabopk10.com】:https://finance.china.com/domestic/11173294/20170502/30480483_all.htmlyabo官网【yabopk10.com】:https://finance.china.com/domestic/11173294/20170502/30480483_all.htmlyabo官网【yabopk10.com】:https://games.qq.com/a/20180420/024083.htmyabo官网【yabopk10.com】:https://tech.china.com/news/company/892/20160827/23400526.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2016-08-27/doc-ifxvixeq0584386.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2017-11-12/doc-ifynrsrf4033853.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-01-29/doc-ifyqyqni4708162.shtml?source=cj&dv=1yabo官网【yabopk10.com】:https://tech.qq.com/a/20170430/005032.htmyabo官网【yabopk10.com】:https://sports.163.com/10/1220/10/6OBF6IPL00051CBI.htmlyabo官网【yabopk10.com】:http://news.sohu.com/20070828/n251810719.shtmlyabo官网【yabopk10.com】:http://www.sport.gov.cn/n316/n343/n1196/c786665/content.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-06-20/doc-ihefphqk4272047.shtmlyabo官网【yabopk10.com】:http://m.cctv.com/dc/n/index.shtml?articalID=ARTI1gR7ULI3tN1bULdS9cMf160311&code=860010-1145020100yabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-02-05/doc-ifyremfz5019122.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-06-20/doc-ihefphqk4272047.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/20131017/132817023893.shtmlyabo官网【yabopk10.com】:http://www.sport.gov.cn/n316/n343/n1196/c786665/content.htmlyabo官网【yabopk10.com】:https://it.sohu.com/20181121/n556029693.shtmlyabo官网【yabopk10.com】:http://news.cntv.cn/20101227/102492.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-10-11/doc-iicezuev1529798.shtmlyabo官网【yabopk10.com】:https://it.sohu.com/20181121/n556029693.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-06-20/doc-ihefphqk4272047.shtml?source=cj&dv=1yabo官网【yabopk10.com】:http://finance.ifeng.com/a/20160309/14258201_0.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7sKA7sMD0QTyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-05-07/doc-ihvhiews0420346.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7sGqUogoP9gyabo官网【yabopk10.com】:https://games.qq.com/a/20180420/024083.htmyabo官网【yabopk10.com】:http://www.southcn.com/g/2016-03/08/default.htmyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7mjDwUmMh7eyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7mZJAP5LsOKyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-03-19/doc-ifysmefx2133360.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7jtGZIc2ESqyabo官网【yabopk10.com】:https://games.qq.com/a/20180420/024083.htm

鸭脖电竞

首頁 > 資訊 > 技術文章 > 詳情
閥門毛坯的選擇原則與機械加工餘量

發布時間:2017-12-12 16:44:00   訪問:774

一、閥門毛坯的選擇原則

機械加工常用的毛坯有鑄件、鍛件、型材及焊接件。不同的毛坯種類以及毛坯的精度、粗糙度和硬度等對機械加工工藝過程有着直接的影響。

選擇閥門毛坯時應考慮如下的一些因素。

①零件的材料及對材料的組織和性能要求。設計圖上規定的零件材料,大體上就決定毛坯的種類。例如,零件材料為鑄鐵就必須用鑄造方法來制造毛坯。對于鋼制零件,在選擇毛坯時應考慮對材料的力學性能要求。例如,制造高壓閥門的零件一般應盡量選用鍛件或焊接件,以保證材料具有良好的力學性能。

②零件的結構形狀和外形尺寸。零件的結構形狀是影響毛坯選擇的重要因素,例如,結構形狀複雜的閥體可選用鑄件。尺寸大的閥體可選用砂型鑄造;尺寸小的則采用熔模鑄造。

③生産綱領的大小。零件的生産綱領愈大,采用高精度和高效率的毛坯制造方法經濟效果愈好。

④毛坯制造的條件。應根據現場的設備狀況和工藝水平來選擇毛坯,并考慮到發展前景,而逐步采用先進的毛坯制造方法。

毛坯及機械加工餘量

一、加工餘量及其确定方法

(一)基本概念

1.加工總餘量和工序餘量

(1)加工總餘量毛坯尺寸與零件圖的設計尺寸之差。

(2)工序餘量相鄰兩工序的尺寸之差·

(3)基本餘量毛坯基本尺寸與零件圖上相應的基本尺寸之差,相鄰兩工序的基本尺寸之差,分别稱為基本加工總餘量(}boj)與基本工序餘量(Zbj}a

(4)加工總餘量與工序餘量的關系

閥門毛坯的選擇原則與機械加工餘量

式中da . Da_上工序直徑尺寸;

db . Db—本工序直徑尺寸。

(2}對于平面加工單面餘量系指以一個表面為基準加工另一個表面時相鄰兩工序的尺寸差。雙面餘量系指以加工表面的對稱平面為基準同時加工兩表面時相鄰兩工序的尺寸差

對于外表面單面餘量:zb=a-b

雙面餘量2Zb=a一b

yabo官网【yabopk10.com】:https://sports.sohu.com/20150522/n413585502.shtmlyabo官网【yabopk10.com】:http://game.people.com.cn/n1/2018/0420/c48648-29940026.htmlyabo官网【yabopk10.com】:http://www.southcn.com/g/2016-03/08/default.htmyabo官网【yabopk10.com】:https://finance.ifeng.com/c/7ml1uNnpWo6yabo官网【yabopk10.com】:http://finance.china.com.cn/news/special/jjsj2014-1/index.shtmlyabo官网【yabopk10.com】:https://sports.qq.com/a/20131018/005391.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-11-13/doc-iihnzhfy9035716.shtmlyabo官网【yabopk10.com】:http://news.sohu.com/20070828/n251810719.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-12-11/doc-iihnzhfz5221385.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-10-11/doc-iicezzrr1576363.shtml?source=cj&dv=2yabo官网【yabopk10.com】:https://it.sohu.com/20181121/n556029693.shtmlyabo官网【yabopk10.com】:http://sports.sina.com.cn/other/2018-04-20/doc-ifznefkf7724769.shtmlyabo官网【yabopk10.com】:http://www.sport.gov.cn/n316/n343/n1196/c786665/content.htmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2018-02-05/doc-ifyremfz5019122.shtmlyabo官网【yabopk10.com】:http://www.southcn.com/g/2016-03/08/default.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-12-09/doc-iihnzahi6376234.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2020-03-20/doc-iimxyqwa2083427.shtmlyabo官网【yabopk10.com】:https://business.sohu.com/20160308/n439685530.shtmlyabo官网【yabopk10.com】:https://finance.sina.com.cn/stock/relnews/hk/2019-07-23/doc-ihytcerm5574901.shtmlyabo官网【yabopk10.com】:http://money.163.com/keywords/6/4/674e56fd5b9d/1.htmlyabo官网【yabopk10.com】:https://finance.ifeng.com/c/7ml1uNnpWo6yabo官网【yabopk10.com】:http://finance.qq.com/a/20110329/003988.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-11-27/doc-iihnzhfz2012529.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-11-27/doc-iihnzhfz2012529.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-11-14/doc-iihnzahi0848800.shtmlyabo官网【yabopk10.com】:https://map.baidu.com/place/58c23143cf598975e9e58277yabo官网【yabopk10.com】:https://finance.ifeng.com/c/7ml1uNnpWo6yabo官网【yabopk10.com】:http://paper.people.com.cn/zgjjzk/html/2009-10/19/content_364188.htmyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7v0KjxM79CByabo官网【yabopk10.com】:http://finance.qq.com/a/20110329/005815.htmyabo官网【yabopk10.com】:https://sports.qq.com/a/20131018/005391.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-12-09/doc-iihnzahi6376234.shtmlyabo官网【yabopk10.com】:http://news.sina.com.cn/c/2018-02-08/doc-ifyrkzqq9536226.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2016-03-08/doc-ifxpzzhk2479714.shtmlyabo官网【yabopk10.com】:https://sports.qq.com/a/20101221/000241.htmyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7v0KjxM79CByabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2016-03-09/doc-ifxpzzhk2579996.shtmlyabo官网【yabopk10.com】:https://tech.china.com/news/11146418/20160828/23403995.htmlyabo官网【yabopk10.com】:http://jingji.cntv.cn/20110524/103093.shtmlyabo官网【yabopk10.com】:http://m.cctv.com/dc/n/index.shtml?articalID=ARTI1gR7ULI3tN1bULdS9cMf160311&code=860010-1145020100yabo官网【yabopk10.com】:https://tech.qq.com/a/20170430/005032.htmyabo官网【yabopk10.com】:http://finance.ifeng.com/hk/sckx/20120424/6359471.shtmlyabo官网【yabopk10.com】:http://sports.sina.com.cn/l/2015-11-12/doc-ifxkszhk0199675.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2017-04-17/doc-ifyeimzx6659503.shtmlyabo官网【yabopk10.com】:https://finance.ifeng.com/c/7ml1uNnpWo6yabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-07-24/doc-ihytcerm5860728.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7qgrnhtvFFTyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-05-16/doc-ihvhiqax9181837.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/hk/sckx/20120424/6359471.shtmlyabo官网【yabopk10.com】:http://finance.qq.com/a/20110329/005815.htmyabo官网【yabopk10.com】:http://news.sina.com.cn/z/wmd11n/yabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2016-03-07/doc-ifxpzzhk2433474.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/hkstock/ggscyd/2016-08-27/doc-ifxvixeq0584386.shtmlyabo官网【yabopk10.com】:http://m.cctv.com/dc/n/index.shtml?articalID=ARTI1gR7ULI3tN1bULdS9cMf160311&code=860010-1145020100yabo官网【yabopk10.com】:https://sports.sohu.com/20070823/n251741241.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7qCwssucfAFyabo官网【yabopk10.com】:http://sports.sina.com.cn/l/2017-03-24/doc-ifycstww1048292.shtmlyabo官网【yabopk10.com】:https://finance.sina.com.cn/stock/relnews/hk/2019-07-23/doc-ihytcerm5574901.shtmlyabo官网【yabopk10.com】:https://finance.ifeng.com/c/7m707slpXZYyabo官网【yabopk10.com】:https://sports.sohu.com/s2010/chinasportsrs2010/yabo官网【yabopk10.com】:http://finance.ifeng.com/c/7rZZyGaHFe6yabo官网【yabopk10.com】:https://sports.qq.com/a/20101221/000241.htmyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-12-09/doc-iihnzhfz4736353.shtmlyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7qgrnhtvFFTyabo官网【yabopk10.com】:http://finance.sina.com.cn/roll/2016-03-08/doc-ifxpzzhk2479714.shtmlyabo官网【yabopk10.com】:https://sports.qq.com/a/20131018/005391.htmyabo官网【yabopk10.com】:http://finance.qq.com/a/20100909/002641.htmyabo官网【yabopk10.com】:http://finance.ifeng.com/c/7jtGZIc2ESqyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/us/2019-12-11/doc-iihnzhfz5221385.shtmlyabo官网【yabopk10.com】:http://finance.sina.com.cn/stock/relnews/hk/2019-07-24/doc-ihytcerm5860728.shtmlyabo官网【yabopk10.com】:http://news.sina.com.cn/z/wmd11n/yabo官网【yabopk10.com】:http://finance.ifeng.com/hk/sckx/20120424/6359471.shtml

鸭脖电竞

1835155174176222