新聞管理

編輯新聞資訊

新聞标題： *

所屬欄目：

作者名稱： *

發表時間：如要修改，請(qǐng)注意格式。

新聞内容：

湖南管件厂家推进速度快生产率高，河北乾特管道设备有限公司【<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">13932768305&nbsp;刘经理<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">】是河北一家大型的<A href="http://www.hbjjnnj.cn/index.html" target=_blank>管件厂家</A><SPAN style="FONT-WEIGHT: normal; BACKGROUND: rgb(255,255,255); WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: 0pt; WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">、<A href="http://www.hbjjnnj.cn/wantou/index.html" target=_blank>弯头厂家</A>、<A href="http://www.hbjjnnj.cn/sregerh/index.html" target=_blank>法兰厂家</A>，主要生产：<A href="http://www.hbjjnnj.cn/wantou/duihanwantou/index.html" target=_blank>对焊弯头</A>、<A href="http://www.hbjjnnj.cn/wantou/tangangwantou/index.html" target=_blank>碳钢弯头</A>等产品。公司产品广泛应用于石油、化工、造纸、制药、食品、啤酒、电力、造船、天然气等行业，了解更多详情欢迎登录<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">：<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><A style="COLOR: rgb(100,100,100); TEXT-DECORATION: none" href="http://www.hbjjnnj.cn/ProDisplay/index.html">http://www.hbjjnnj.cn/ProDisplay/index.html</A>
<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">&nbsp;&nbsp;&nbsp; 
<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal">碳钢弯头加热温度的确定原则是材质奥氏体化温度以上，且推制时弯头内壁主压应力小于材料在此温度下的屈服极限。材质奥氏体化温度越高，加热温度越高; 材质高温屈服极限越高，加热温度越高。中频感应加热，WB36 钢的最高温度为850 ～900 ℃ ，A335P22钢为900 ～950 ℃，A335P91 材质的加热温度最高点为900 ～1000 ℃。测温方式为固定式远红外测温仪和手动式远红外测温仪相结合。 温度分布是一个重要的工艺参数，由感应圈形状及感应圈与芯棒头相对位置直接控制。感应圈形状是主要因素，感应圈与芯棒头相对位置是次要因素。温度沿芯棒头径向分布规律为低、中、高。加热温度高，冲压弯头壁厚增大。推进速度对推制弯头几何形状的影响推进速度作为一个重要的工艺参数，由液压系统流量调节直接控制。 推进速度的确定原则是弯头内壁主压应力小于材料在此温度下的屈服极限，弯头外壁伸长率小于材料在此温度下的最大伸长率。材质透热系数、磁导率及中频功率大，推进速度快。推进速度快，生产率提高，但推制弯头的壁厚减薄率增大。
<SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(63,63,63); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><SPAN style="FONT-WEIGHT: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; FONT-FAMILY: 宋体, verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-caps: normal"><IMG src="http://www.hbjjnnj.cn/Upfiles/proimages/201861210261830.jpg">

全站推薦：