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发表于 2006-1-10 08:36:00
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<FONT face=Arial> <FONT size=2>3.unless otherwise specified:</FONT></FONT>
<P><FONT face=Arial size=2>3. 除另有要求外:</FONT></P>
<P><FONT face=Arial size=2>A.Draft angles to be 0.50° to 1.50°</FONT></P>
<P><FONT face=Arial size=2>A. 拔模斜度为0.50度~1.50度</FONT></P>
<P><FONT face=Arial size=2>B.Ejector pin marks to be flush to 0.25 recessed with 0.13 max flash</FONT></P>
<P><FONT face=Arial size=2>B. 顶销痕迹磨为凹进0.25,最大毛刺为0.13。 </FONT></P>
<P><FONT face=Arial size=2>C.sharp corners and fillets to be broken with a 0.38 to 0.89 radius</FONT></P>
<P><FONT face=Arial size=2>C. 尖角和内角磨圆,半径.38~.89</FONT></P>
<P><FONT face=Arial size=2>3.all datum target locations must be free of burrs and flash.The datum scheme that we require to hold critical feature tolerances is as follows:</FONT></P>
<P><FONT face=Arial size=2>3.基准目标位置无飞边和毛刺。确定重要特征的基准线要求如下:</FONT></P>
<P><FONT face=Arial size=2>Primary datum-denoted as Z is defined by exactly three points one each on the intake port side if lugs at the flange and a third lug at the top of the cylinder.There is a basic dimension of 31.50mm to this face that must be held.</FONT></P>
<P><FONT face=Arial size=2>基本基准线-用Z表示-用进气口上的三点,如flange(凸缘)上的耳部和圆柱体顶部的耳部。必须保持到这个面的31.50mm这个基本尺寸</FONT></P>
<P><FONT face=Arial size=2>secondary datum-denoted as Y is defined as perpendicular to the Z datum plane and through exactly two points found as 3mm target at the top of the transfer ports as specified on the drawing.</FONT></P>
<P><FONT size=2><FONT face=Arial>二级(第二?)基准线-用Y表示-为与Z基准面垂直,并穿过2点,即传送孔(transfer ports)的顶端的3mm目标,见图纸说明<EM>。</EM></FONT></FONT></P>
<ADDRESS><FONT face=Arial size=2>tertiary datum-denoted as <FONT color=#ee3d11>Z</FONT> is defined as perpendicular to both the Z and Y datum planes and through a single point as specified on the drawing</FONT></ADDRESS>
<ADDRESS><FONT size=2></FONT><FONT face=Arial> </FONT></ADDRESS>
<ADDRESS><FONT face=Arial size=2>三级(第三?)基准线-用<FONT color=#ff0000>z</FONT>表示-与Z和Y基准面都垂直,通过一点(该点见图纸)</FONT></ADDRESS> |
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