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<td align="right" width="60%"><span class="JQ"><span style="color:#000000;"><strong>Z308铸铁焊条</strong></span></span></td>
<td style="padding-left:1em;vertical-align:middle;" width="40%"><span style="color:#000000;"><strong>符合 GB EZNi-1<br />
相当 AWS ENi-C1</strong></span></td>
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<p><span style="color:#000000;"><strong>说明:</strong> Z308是纯镍焊芯、强还原性石墨型药皮的铸铁焊条，施焊时，焊件可不预热，具有良好的抗裂性能和加工性能。镍价格昂贵，应该在其它焊条不能满足时才可选用。交直流两用。</span></p>
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<p><span style="color:#000000;"><strong>用途:</strong> 用于铸铁薄件及加工面的补焊，如发动机座、机床导轨、齿轮座等重要灰口铸铁件。</span></p>
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<td class="Metal" colspan="2"><strong><span style="color:#000000;">熔敷金属化学成分(%)</span></strong><span style="color:#000000;"> </span> <table class="ke-zeroborder" bordercolor="#d4d0c8" cellspacing="1" width="100%" bgcolor="#000000" border="0">
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<div align="center"><span style="color:#000000;">化学成分 </span></div>
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<div align="center"><span style="color:#000000;">C</span></div>
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<td height="20">
<div align="center"><span style="color:#000000;">Mn</span></div>
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<td height="20">
<div align="center"><span style="color:#000000;">Si</span></div>
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<div align="center"><span style="color:#000000;">S</span></div>
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<div align="center"><span style="color:#000000;">Ni</span></div>
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<div align="center"><span style="color:#000000;">Fe</span></div>
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<td height="20">
<div align="center"><span style="color:#000000;">其它元素总量</span></div>
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<div align="center"><span style="color:#000000;">保证值</span></div>
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<div align="center"><span style="color:#000000;">≤2.00</span></div>
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<div align="center"><span style="color:#000000;">≤1.00</span></div>
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<div align="center"><span style="color:#000000;">≤2.50</span></div>
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<div align="center"><span style="color:#000000;">≤0.030</span></div>
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<div align="center"><span style="color:#000000;">≥90</span></div>
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<div align="center"><span style="color:#000000;">≤8</span></div>
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<div align="center"><span style="color:#000000;">≤1.00</span></div>
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<td colspan="2"><span style="color:#000000;"><strong>参考电流</strong> (AC、DC+) </span> <table class="ke-zeroborder" bordercolor="#d4d0c8" cellspacing="1" width="100%" bgcolor="#000000" border="0">
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<div align="center"><span style="color:#000000;">焊条直径(mm) </span></div>
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<div align="center"><span style="color:#000000;">φ2.5</span></div>
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<td valign="bottom" height="20">
<div align="center"><span style="color:#000000;">φ3.2</span></div>
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<td valign="bottom" height="20">
<div align="center"><span style="color:#000000;">φ4.0</span></div>
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<td valign="bottom" height="20">
<div align="center"><span style="color:#000000;">φ5.0</span></div>
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<div align="center"><span style="color:#000000;">焊接电流(A) </span></div>
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<div align="center"><span style="color:#000000;">50~100</span></div>
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<div align="center"><span style="color:#000000;">70~120</span></div>
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<div align="center"><span style="color:#000000;">110~180</span></div>
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<div align="center"><span style="color:#000000;">160~190</span></div>
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<td valign="top" colspan="2"><span style="color:#000000;"><strong>注意事项</strong>:<br />
1.焊前焊条须经150℃左右烘焙1h。<br />
2.可以通过锤击焊缝消除焊补区应力，避免裂纹。</span></td>
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