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Manual Traffic Exchanges This is a list of Manual traffic exchanges that you can use to get your site viewed by thousands of people a week. Manual traffic exchanges are better known for quality over the quantity you find with auto surfs. But both are great for generating traffic.

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Old 03-31-2011, 07:30 AM   #1
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Default |清大圣科气化炉坚决反诈骗.|激光焊基本原理特点及

电子束焊具有以下特点:
能量密度大,电子穿透力强;
焊接速度快,热影响取消,焊接变形小;
真空保护好,焊缝质量高,特别适用于活波金属的焊接××清大圣科×清 大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条设备& times;清大圣科气化炉×www.qhsk.cn×清大圣科科技有限公司&t imes;×
可以焊接常规焊接方法难以焊接的材料,如焊接钨、钼、钽、锆等难熔金属;
可以在空气中焊接有色金属,而不需外加保护气体;
激光焊设备较复杂,成本高××清大圣科×清大圣科电焊条&times ;清大圣科电焊条设备×清大金桥×清大金桥电焊条设备×清大圣科气化 炉×www.qhsk.cn×清大圣科科技有限公司×& times;
电子束焊的基本原、特点及用途
电子束焊利用在真空中利用聚焦的高速电子束轰击焊接表面,使之瞬间熔化并形成焊接接头×&ti mes;清大圣科×清大圣科电焊条×清大圣科电焊条设备×清大金桥& times;清大金桥电焊条设备×清大圣科气化炉×www.qhsk.cn&ti mes;清大圣科科技有限公司××
激光焊利用聚焦的激光束作为能源轰击工件所产生的热量进行焊接××清大圣科&ti mes;清大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电 焊条设备×清大圣科气化炉×www.qhsk.cn×清大圣科科技有 限公司××
电子束焊用于焊接低合金钢、有色金属、难熔金属、复合材料、异种材料等,薄板、厚板均可×&t imes;清大圣科×清大圣科电焊条×清大圣科电焊条设备×清大金桥 ×清大金桥电焊条设备×清大圣科气化炉×www.qhsk.cn&t imes;清大圣科科技有限公司×× 特别适用于焊接厚件及要求变形很小的焊件、真空中使用器件、精密微型器件等××清 大圣科×清大圣科电焊条×清大圣科电焊条设备×清大金桥&times ;清大金桥电焊条设备×清大圣科气化炉×www.qhsk.cn×清 大圣科科技有限公司××
激光焊具有如下特点:
激光束能量密度大,加热过程极短,焊点小,热影响区窄,焊接变形小,焊件尺寸精度高;×&ti mes;清大圣科×清大圣科电焊条×清大圣科电焊条设备×清大金桥& times;清大金桥电焊条设备×清大圣科气化炉×www.qhsk.cn&ti mes;清大圣科科技有限公司××
激光焊可以焊接低合金高强度钢、不锈钢及铜、镍、钛合金等;异种金属以及非金属材料(如陶瓷、有机玻璃等) ;目前主要用于电子仪表、航空、航天、原子核反应堆等领域××清大圣科&time s;清大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条 设备×清大圣科气化炉×www.qhsk.cn×清大圣科科技有限公 司××
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