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<P>焊接弯头以旧换新,河北乾特管道设备有限公司<FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>座落于</FONT><SPAN style="DISPLAY: inline! important; FONT-WEIGHT: 400; FONT-SIZE: 12px; FLOAT: none; 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; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial">"中国管道装备制造基地 ”——</SPAN><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>孟村回族自县牛进庄</FONT><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>乡</FONT><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>,产品</FONT><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>包括</FONT><A style="FONT-WEIGHT: 400; FONT-SIZE: 12px; 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); TEXT-DECORATION: none; WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px" href="http://www.tddgjxc.com/"><STRONG><FONT style="FONT-SIZE: 16px">热压弯头</FONT></STRONG></A><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 16px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial"><STRONG>、</STRONG></FONT><A style="FONT-WEIGHT: 400; FONT-SIZE: 12px; 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); TEXT-DECORATION: none; WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px" href="http://www.tddgjxc.com/ProDisplay/index.html"><STRONG><FONT style="FONT-SIZE: 16px">焊接弯头</FONT></STRONG></A><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>等</FONT><SPAN style="DISPLAY: inline! important; FONT-WEIGHT: 400; FONT-SIZE: 12px; FLOAT: none; 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; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial"><SPAN> </SPAN>,</SPAN><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>多年来受到无数好评</FONT><SPAN style="DISPLAY: inline! important; FONT-WEIGHT: 400; FONT-SIZE: 12px; FLOAT: none; 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; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial">,</SPAN><FONT style="FONT-WEIGHT: 400; FONT-SIZE: 12px; WORD-SPACING: 0px; TEXT-TRANSFORM: none; COLOR: rgb(100,100,100); TEXT-INDENT: 0px; FONT-STYLE: normal; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial" face=宋体>详情登录:</FONT><A style="FONT-WEIGHT: 400; FONT-SIZE: 12px; 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); TEXT-DECORATION: none; WIDOWS: 2; ORPHANS: 2; font-variant-ligatures: normal; font-variant-caps: normal; webkit-text-stroke-width: 0px" href="http://www.tddgjxc.com/">www.tddgjxc.com</A> </P> <P> </P> <P>冲压成形弯头是很早使用于批量制作无缝弯头的成形工艺,在常用规格的弯头制作中已被热推法或其它成形工艺所替代,但在某些规格的弯头中因制作数目少、壁厚过厚或过薄。<BR> 产物有独特要求时仍在运用。弯头的冲压成形选用与弯头外径相当的管坯,运用压力机在模具中直接压迫成形。<BR> 在冲压前,管坯摆放在下模上,将内芯及端模装入管坯,上模向下活动起始压迫,经过外模的管束和内模的维持作用使弯头成形。<BR> 与热推工艺相比,冲压成形的外表品质不如前者;冲压弯头在成形时外弧处于拉伸形态,没有其它部位有余的金属进行赔偿,所以外弧处的壁厚约减薄10%控制。但由于实用于单件制作和低本钱的特点,故冲压弯头工艺多用于小批量、厚壁弯头的制造。<BR> <IMG src="http://www.tddgjxc.com/upfiles/proimages/2017581755349071.jpg"></P> <P>上一条:<A title=热压弯头制造过程 href="http://www.tddgjxc.com/hangye/2732.html" target=_blank>热压弯头制造过程</A></P> <P>下一条:<A title=焊接弯头货到付款 href="http://www.tddgjxc.com/hangye/2738.html" target=_blank>焊接弯头货到付款</A></P>
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