<span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"> <p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 80.3pt; mso-char-indent-count: 5.0; mso-char-indent-size: 16.05pt;"><font face="楷体_GB2312"><font size="3"><span><strong>铸造C A E系统——JSCAST简介:<p></p></strong></span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 52.5pt; mso-char-indent-count: 5.0; mso-char-indent-size: 10.5pt;"><span lang="EN-US"><p><font face="楷体_GB2312" size="3"></font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US" style="FONT-SIZE: 14pt; mso-bidi-font-size: 12.0pt;">JSCAST</span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">概要:</span><span lang="EN-US" style="FONT-SIZE: 14pt; mso-bidi-font-size: 12.0pt;"><p></p></span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US"> </span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>JSCAST</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">适用于几乎所有的铸造工艺及合金的充型及凝固过程的数值解析。通过充型流动形态可预测充填不良·卷气等缺陷。通过凝固时间·温度梯度可预测缩孔等缺陷的发生。在缩短试作时间·降低铸件成本·优化铸造工艺,及相关技术累积与传授等应用方面是最好的</span><span lang="EN-US">C A E</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">铸造工艺专用系统。</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US"> </span><span lang="EN-US"><span style="mso-spacerun: yes;"> </span>JSCAST</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">是一种可对铸造工艺中熔化金属的流动及凝固进行模拟的软件。可以显示金属水在金属模具内是如何流动和注入的;可以模拟注入完成后的凝固过程;而且还可以预测各种模具将会产生哪些缺陷,通过电脑确定最佳铸造方案,并配有图文、图表说明,</span><span lang="EN-US">3D</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">的图示使您一目了然。甚至对壁厚不到</span><span lang="EN-US">1mm</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">且形状复杂的铸件也可模拟。另外,即使产品数据与方案数据不同,也可在预处理器上将两种数据结合起来。该系统采用校准公差(</span><span lang="EN-US">Calibration Tolerance</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)模型,以及规则和不规则混合要素(增加了三角要素),因此精度较高。</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"></span></font></font><font face="楷体_GB2312"><font size="3"><span lang="EN-US" style="FONT-SIZE: 14pt; mso-bidi-font-size: 12.0pt;">JSCAST</span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">的功能:</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span lang="EN-US" style="FONT-SIZE: 12pt;"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">四个高级模块独有功能及特性:</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 12pt; mso-char-indent-count: 1.0; mso-char-indent-size: 12.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt;"><p><font face="楷体_GB2312" size="3"></font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">一</span><span style="FONT-SIZE: 12pt;"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">规则——不规则混合网格</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt;"><p><font face="楷体_GB2312" size="3"></font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font face="楷体_GB2312" size="3">特点:提高铸件薄壁处·弯曲面的形状近似精度及解析精度,既保证了操作的简洁性,又能提高计算精度,因而减少用户负担。</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、铸件及铸型内部仍采用直交单元,薄壁处,弯曲或倾斜面附近则采用不规则单元进行网格划分</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、预处理器的操作性能,与直交网格划分相同</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、流动解析及凝固解析均采用直接差分法(</span><span lang="EN-US">DFDM</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">)</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><p><font face="楷体_GB2312" size="3"></font></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">二</span><span style="FONT-SIZE: 12pt;"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">球墨铸铁缩孔缺陷预测</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span lang="EN-US" style="FONT-SIZE: 12pt;"> </span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font size="3">特点:导入了其他商用凝固解析软件尚未考虑到的因素,从而提高球墨铸铁件的缩孔预测精度。</font></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、凝固收缩</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、球墨析出时的体积膨胀</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、铸物与铸型的变化</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">4</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、来自浇冒口的液体补缩机理</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">三</span><span style="FONT-SIZE: 12pt;"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">考虑背压的充型流动解析</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span lang="EN-US" style="FONT-SIZE: 12pt;"> </span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font size="3">特点:铸型型腔内部未充填部位的空气压力(背压)变化及通过排气孔或脱型销缝隙的排气也计算在内,可现实与实际充型过程更接近的流动模拟结果。</font></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、通过排气孔或脱型销缝隙的排气</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、液体金属内部细小气泡的卷入</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、充型过程中背压变化及背压对液体金属流动的影响</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">四</span><span style="FONT-SIZE: 12pt;"> </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">铝合金铸件缩松缺陷预测</span><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><span lang="EN-US" style="FONT-SIZE: 12pt;"> </span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font size="3">特点:导入了铝合金铸件特有的缩孔缩松形成机理(其他商用流动·凝固解析软件尚未考虑),从而提高解析精度。</font></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、液体金属自由表面碰撞时,氧化膜的破碎</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、液体内部氧化膜的卷入</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、以氧化膜为基体,氢气泡的形核及生长</span></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font face="楷体_GB2312"><font size="3"><span lang="EN-US">4</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">、氢气浓度及压力的影响</span></font></font></p></span> |