什么是重力铸造？

qixu

最近到一个精密铝合金铸造厂家联系加工，厂方说这种铸造方法叫“重力铸造”，我第一次听说，请那位高人指点一下！

liujiefeng01

重力铸造一般指借用地球重力的浇铸系统,现在泛指金属模具铸造.

pandeqi

<div class="quote" twffan="done"><b>以下是引用<i>liujiefeng01</i>在2007-3-31 9:43:00的发言：</b><br/>重力铸造一般指借用地球重力的浇铸系统,现在泛指金属模具铸造.</div><p>重力铸造只是合金液的充型方式的一种分类，重力铸造按铸型分类还有：砂型铸造、熔模铸造、陶瓷型铸造、石膏型铸造、石墨型铸造、壳型铸造等等等等！。。。。</p>

qixu

”重力铸造“名称挺唬人！

shaolala

靠金属液自身重力进行充型的铸造！

linmaoting

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>qixu</i>在2007-3-29 20:59:00的发言：</b><br/>最近到一个精密铝合金铸造厂家联系加工，厂方说这种铸造方法叫“重力铸造”，我第一次听说，请那位高人指点一下！</div><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">重力铸造是以金属为模具的一种铸造方式，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">铸造铝合金较多。</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">现今浇铸方式有手工、机械手臂、盆式旋转，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">其原理是在铸件上方开一适当收缩冒口，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">必要时会在冒口喷上保温离形剂或是涂上保温绵。</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">『浇铸后铸件成形、凝固是靠</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">[</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">地心引力</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">]</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">，由下往上自然凝固收缩』，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">排气亦是如此，于深孔或排气不良处鑚孔填入</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">[</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">透气栓</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">]</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">或是加以抽气设备</span><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">(</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">铸造时砂心气排气不良亦是抽气设备</span><font face="Times New Roman"><span lang="EN-US" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;">)</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"><p></p></span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">称之为『重力铸造』是因为它的</span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 新細明體; mso-hansi-font-family: 新細明體; mso-fareast-language: ZH-CN;">浇铸特性和</span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">凝固收缩原理。</span></font></p><p></p>

daming9525

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">重力铸造是以金属为模具的一种铸造方式，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">铸造铝合金较多。</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">现今浇铸方式有手工、机械手臂、盆式旋转，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">其原理是在铸件上方开一适当收缩冒口，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">必要时会在冒口喷上保温离形剂或是涂上保温绵。</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">『浇铸后铸件成形、凝固是靠</span><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;"><font face="Times New Roman">[</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">地心引力</span><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;"><font face="Times New Roman">]</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，由下往上自然凝固收缩』，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">排气亦是如此，于深孔或排气不良处鑚孔填入</span><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;"><font face="Times New Roman">[</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">透气栓</span><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;"><font face="Times New Roman">]</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">，</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">或是加以抽气设备</span><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;"><font face="Times New Roman">(</font></span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">铸造时砂心气排气不良亦是抽气设备</span><font face="Times New Roman"><span lang="EN-US" style="mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN;">)</span><span lang="EN-US" style="mso-fareast-language: ZH-CN;"> <p></p></span></font></font></p><p></p><p></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">称之为『重力铸造』是因为它的</span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 新細明體; mso-hansi-font-family: 新細明體;">浇铸特性和</span><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">凝固收缩原理</span></font></p>

中国铸造论坛

<p>6楼的有误导之嫌啊!</p><p>首先,重力铸造不单单是以金属为模具,砂型铸造、熔模铸造、陶瓷型铸造、石膏型铸造、石墨型铸造、壳型铸造都是啊!</p><p>另外,<font color="#ff3300"><span lang="ZH-CN" twffan="done" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">『浇铸后铸件成形、凝固是靠</span><span lang="EN-US" twffan="done" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">[</font></span><span lang="ZH-CN" twffan="done" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">地心引力</span><span lang="EN-US" twffan="done" style="mso-fareast-language: ZH-CN; mso-fareast-font-family: SimSun;"><font face="Times New Roman">]</font></span><span lang="ZH-CN" twffan="done" style="FONT-FAMILY: SimSun; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN;">，由下往上自然凝固收缩』，<font color="#000000">这也是不对的,重力铸造只定义为"重力下充型"!</font></span></font></p>

rgmyygy

<p>应该是靠.地心重力.充型成型的.</p><p></p><p></p>

yanyi4275

由于重力原因

feiyun2003

谢谢各位楼主,又长见识了!

60m

这个需要科普一下喽！

qy44944

俺也不是很懂啊/////////////////////////////

459296252

刚刚接触啊！！！！！！！！！！

神州8号

铸造按金属液的浇注工艺分为重力铸造和压力铸造。重力铸造是指金属液在地球重力作用下注入铸型的工艺，也称浇铸。广义的重力铸造包括砂型浇铸、金属型浇铸、熔模铸造、消失模铸造，泥模铸造等；窄义的重力铸造专指金属型浇铸。压力铸造是指金属液在其他外力（不含重力）作用下注入铸型的工艺。广义的压力铸造包括压铸机的压力铸造和真空铸造、低压铸造、离心铸造等；窄义的压力铸造专指压铸机的金属型压力铸造，简称压铸。精密铸件厂长期从事砂型和金属型的重力铸造。这几种铸造工艺是目前有色金属铸造中最常用的、也是相对价格最低的。