<p class="MsoNormal" quot;text-align: center; margin: 0cm 0cm 0pt;" align="center"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 16pt; mso-ascii-font-family: ">铜及铜基合金细化剂脱氧管</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 16pt;" lang="EN-US">DS4</span></strong></p> <p class="MsoNormal" quot;text-align: center; margin: 0cm 0cm 0pt;" align="center"><strong quot;mso-bidi-font-weight: normal;"></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">铜及铜基合金脱氧管</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">DS4</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">是引进的新产品，全部配方及加工枝术由外国提供</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">,</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">适用于熔融铜，铜合金和铜镍合金中除去氧化物残余，经济而有效。</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US"> </span></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">产品优点：</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;text-indent: 21.75pt; margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">铜基合金脱氧管产品配方特别设计用来除去熔炼期间形成的或随炉加入的氧化性杂质。如果这些非金属夹杂留在熔体中，则会在凝因后生成疏松的、充满气孔的金属件，严重影响机械性能和铸件的密实性。便用脱氧管。具有增强晶粒细化的作用因为</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">DS</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">管将改善金属流动性与控制晶粒规格和分布结合起来，提高热处理效果，低抗诸如边缘开裂、表面剥落等缺点。</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US"> </span></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">产品应用：</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;text-indent: 21.75pt; margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">对于低锌含量（</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">5%</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">）的铜合金在氧化气氛下熔炼，即使用</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">CUR</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">熔剂产品，有意的形成少量的但很重的铜氧化物以令人满意地从熔体中除去</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">H2</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">，（由于氧气和氢气不能在平衡状态下共存）。然后，用适当的还原剂除去少量的残余氧化物就变得非常容易，在浇铸前加入一个下正确的</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">DS4</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">铜脱氧管即能完成，这种氧化</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">/</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">还原技术能保证无气的、洁净的金属熔体进入浇铸，无须使用操作因难的除气工序。该方法特别适用于所有的青铜、炮炮。尤其适用于较小的熔炼炉，约</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">100</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">千克</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">/</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">炉。</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;text-indent: 24.1pt; margin: 0cm 0cm 0pt; mso-char-indent-count: 2.0;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">当锌含量超过</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">5%</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">时，如黄铜、首饰铜等，在合金的熔点（锌合金的熔点在</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">913</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">摄氏度）时锌的蒸汽压一般是以保证熔体中不存在</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">H2</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">，不必使用氧化性熔剂，并建议减少</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">CURG</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">熔剂的组分。在此情形下，较后的口乖口将有助于境界熔体和增加流动性。同样，铝青铜合金、高度度黄铜、镍银铜合金等，在较后处理使用适当的脱氧管均能有效地增强流动性和细化日粒。</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;text-indent: 24.1pt; margin: 0cm 0cm 0pt; mso-char-indent-count: 2.0;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US"> </span></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">使用方法：</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">熔体的脱氧应在终温度检查和浇铸前进行预热结束，插入已预制成型的脱氧管，用一保护性钟罩将其带到熔体的底部并轻轻地移动，几秒钟</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">DS</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">管熔解，搅拌以使还原剂均分布，然后，仔细将渣撇去（必要时使用</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-size: 12pt;" lang="EN-US">SLAX</span></strong><strong quot;mso-bidi-font-weight: normal;"><span quot;font-family: 宋体; font-size: 12pt; mso-ascii-font-family: ">凝结剂凝渣），就可以进行浇铸了。</span></strong><strong quot;mso-bidi-font-weight: normal;"></strong></p>