HEATS 发表于 2010-9-14 08:28:54

浇注系统的种类

<P style="TEXT-INDENT: -18pt; MARGIN: 0cm 0cm 0pt 18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt" class=MsoNormal><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt; mso-fareast-font-family: ˎ̥; mso-bidi-font-family: ˎ̥" lang=EN-US><SPAN style="mso-list: Ignore"><FONT face="Times New Roman">1、<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; </SPAN></FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">中心浇口:当-铸件</A>的中心处有足够大的通孔时,可在中心设置分流锥和浇注系统,特点如下:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、-金属</A>液流程短。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、不增加或很少增加铸件的投影面积。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>C</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、便于排除深腔部位的气体。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>D</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、有利于模具热平衡。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>E</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、模具外形尺寸小。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>F</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、机器受力均衡。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、侧浇口:浇注系统设置在铸件的侧面,是应用最广泛的一种,特点如下:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、对铸件的流入部位适应性强,可以从铸件的外部或内侧流入,适用于各种形状的铸件。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、可用于一模多腔。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>C</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、去除浇注系统比较容易。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、顶浇口:直接在铸件顶部开设浇注系统,它的浇注系统只有直浇道一个单元。用于较大壳体类零件,其顶部没有通孔,不能设置分流锥的铸件。其具备中心浇口的优点,但有如下缺点:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、金属液直冲型芯,使型芯容易龟裂和黏附金属。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、铸件和浇口相连部位很厚实,容易形成缩孔。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>C</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、去除浇注系统困难。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>4</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、环形浇口:用于较大的圆筒形和弯管状铸件,金属液在流满环形浇道后,再沿整个环形断面填充铸型,特点如下:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、有良好的排气条件和较短的流程。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、浇道耗用金属较多。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>C</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、去除浇注系统较为困难。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>5</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、缝隙浇口:内浇口宽度方向与分型面相垂直,金属液在模具深腔部位呈缝隙式流入,特点如下:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、有利于排除深腔内的气体。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、浇口厚度一般为</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman">1.5<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" UnitName="mm" SourceValue="3" HasSpace="False" Negative="True" NumberType="1" TCSC="0">-3mm</st1:chmetcnv></FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">,去除浇注系统不及方便。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>6</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、点浇口:用于外形对称、壁厚均匀、顶部无孔的壳类铸件,点浇口克服了顶浇口存在的缺陷,金属液以高速沿整个型腔均匀填充,特点如下:</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>A</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、铸件表面光洁。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>B</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、内部结晶致密。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>C</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、生产率高,去除浇口容易。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>D</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、模具结构复杂,需经二次分型。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman"> <BR>E</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">、须严格地确定浇注系统的尺寸和严格控制</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman">&nbsp;</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">-压铸</A>工艺参数</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><FONT face="Times New Roman">&nbsp;</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; COLOR: #505050; FONT-SIZE: 9.5pt; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">。</SPAN><SPAN style="FONT-FAMILY: ˎ̥; COLOR: #505050; FONT-SIZE: 9.5pt" lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
               
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