[原创]放热熔在防雷接地工程中的应用
<p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; TEXT-ALIGN: center; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">放热熔<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">原 理：<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; mso-layout-grid-align: none; mso-char-indent-count: 2.0;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">放热熔接是利用熔接剂化学反应（燃烧）时产生的高温熔融金属导体从而达到焊接的目的。此方法因为化学反应速度非常快（仅数秒），产生热量极高，且可以有效地传导至熔接部位，无需其他任何外加热源，故若应用于金属导体的连接，是最佳的方法。<span lang="EN-US"><br/> <p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">熔接模具组成：<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; mso-layout-grid-align: none; mso-char-indent-count: 2.0;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">放热熔接必须使用特制的铸模（<span lang="EN-US">mould</span>）来完成。此铸模是采用耐高温，半永久性的石墨加工制造而成。这种模具能够承受金属熔化时的超高温。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoBodyTextIndent" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: 24pt; mso-layout-grid-align: none;"><span style="FONT-SIZE: 12pt;"><font face="宋体">模具由几部分组成，包括模腔、模穴、注入孔等。此模具有不同形状的连接，如直通型、丁字型、十字型等等。模穴的形状、尺寸及熔化金属的流向等，均经过严密的设计制造，完成的连接头外形美观、一致，其品质是其他连接头无可比拟的。<span lang="EN-US"><p></p></span></font></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">放热熔接完成的连接头，具有以下特性：<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l3 level1 lfo3; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">1)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">连接点为分子结合（<span lang="EN-US">molecular bond</span>），没有接触面，更没有机械性压力，因此，不会松弛或腐蚀（不会劣化）。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l3 level1 lfo3; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">2)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">具有较大的散热面积，因此，通电流能力与导体相同。（温升低于导体本身）<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l3 level1 lfo3; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">3)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">熔点与导体相同，故能承受重覆性大电流（故障时）冲击，不至熔断。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l3 level1 lfo3; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">4)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">抗张力强于导线。（软铜线为准）<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">放热熔接在施工中的优点：<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l1 level1 lfo4; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">1)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">装备简单，携带方便，无需外加热源，适合于野外、室内现场熔接作业。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l1 level1 lfo4; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">2)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">熔接速度快捷，可节省人力物力。<span lang="EN-US">(</span>熔接加清模时间，不超过<span lang="EN-US">5</span>分钟<span lang="EN-US">)</span>。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l1 level1 lfo4; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">3)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">熔接方法简单，容易操作，无需技术性焊接工人。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l1 level1 lfo4; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">4)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">接头形状划一，品质管制容易。（仅凭视检即可）。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l1 level1 lfo4; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">5)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">所加总热量比其他熔接法少很多，对绝缘物的破坏，影响很少。<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">放热熔接可以熔接下列金属材料：<span lang="EN-US"><p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">1)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">普通钢铁（<span lang="EN-US">common steel</span>） 纯铁（<span lang="EN-US">pure iron</span>）<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">2)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">不锈钢（<span lang="EN-US">stainless steel</span>） 锻铁（<span lang="EN-US">wrought iron</span>）<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">3)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">黄铜（<span lang="EN-US">brass</span>） 青铜（<span lang="EN-US">bronze</span>）<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">4)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">铜包钢（<span lang="EN-US">copper clad</span>） 电热线<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">5)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">铸铁（熔剂不同，须预先指明）镀锌钢铁 <span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-layout-grid-align: none;"><b><span style="FONT-SIZE: 12pt; COLOR: red; FONT-FAMILY: 宋体;">放热熔接应用<span lang="EN-US">:<p></p></span></span></b></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l2 level1 lfo2; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">1)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">防雷及浪涌保护<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l2 level1 lfo2; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">2)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">电脑网络建设<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l2 level1 lfo2; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">3)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">电气设备接地工程处理<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l2 level1 lfo2; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">4)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">铁路、高速公路、石化工程建设<span lang="EN-US"><p></p></span></span></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; LAYOUT-GRID-MODE: char; TEXT-INDENT: -21pt; mso-layout-grid-align: none; mso-list: l2 level1 lfo2; tab-stops: list 21.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">5)<span style="FONT: 7pt "Times New Roman";"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体;">智能化大厦建设<span lang="EN-US"><p></p></span></span></p><p></p><p></p>[此贴子已经被作者于2007-8-7 11:17:04编辑过]
<p><img src="http://images13.51.com/30/a/a1/6e/gzanren/512_384_5147424920gzanre.jpg" border="0" alt=""/></p><p>地网的开挖</p>
[此贴子已经被作者于2007-8-7 11:05:53编辑过]
<p>http://images13.51.com/30/b/a1/6e/gzanren/384_512_3145367010gzanre.jpg</p><p>开挖完成的环型地网，呈‘目’字型，地网深1米，宽0.5米。</p> <p>http://images13.51.com/29/a/a1/6e/gzanren/512_384_1881617790gzanre.jpg</p><p>放热熔作业需要的工具及材料。</p> <p>http://images13.51.com/24/a/a1/6e/gzanren/512_384_4236429320gzanre.jpg</p><p></p><p>垂直接地极安装</p> <p>http://images13.51.com/20/a/a1/6e/gzanren/512_384_5411360550gzanre.jpg</p><p></p><p>焊接作业过程</p> <p>http://images13.51.com/25/a/a1/6e/gzanren/512_384_8449652070gzanre.jpg</p><p></p><p>焊接完成</p> <p>http://images13.51.com/25/b/a1/6e/gzanren/512_384_710585200gzanren.jpg</p><p></p><p>清理工具，准备下个焊接点作业。</p> <p>http://images13.51.com/28/a/a1/6e/gzanren/384_512_1315371020gzanre.jpg</p><p></p><p>放置降阻剂，准备回填恢复。</p> <div class="quote"><b>以下是引用<i>冻冬</i>在2007-8-7 11:14:00的发言：</b><br/><p>http://images13.51.com/28/a/a1/6e/gzanren/384_512_1315371020gzanre.jpg</p><p></p><p>放置降阻剂，准备回填恢复。</p></div><p>多图，不错，</p><p>不过，大哥，下次能不能把公司的名字放小点，做人要低调。。。。。</p>