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    Shenzhen Huaihui Electronic Materials Co., LTD
    The 9th Floor, Jinhao Building, No.109, Fuyong Section, Guangshen Road, Fenghuang Community, Fuyong Street, Bao'an District, Shenzhen City
    Tel:+86-0755-27368905 27368906
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    E-mail:huaihui@szhuaihui.com
    Huizhou Huaihui New Material Technology Co., LTD
    Huizhou Boluo County, Changning Town, Puraft Village cowhide Group Source Fa Chemical Industrial Park
    Dongguan Huaihui Welding New Material Co., Ltd
    Floor 3, Building 2, No.13, Chigang Fuma First Road, Humen Town, Dongguan City
There's a lead wash series G-552

There's a lead wash series G-552


Category: Lead-free Washing-free welding G-880B series

Introduction: G-552 series is made of special solder paste and spherical tin-lead alloy powder with very low oxygen content, which has excellent continuous printing image resolution. In addition, the solder paste contained in this product has a highly reliable low ionic halogen activator system, which makes it highly reliable even after washing the residue after welding.

Specification parameter

产品简介:
        G-552系列采用特殊的助焊膏与氧含量极低的球形锡铅合金粉末配制而成,具卓越的连续印刷解像性;此外,本制品所含有之助焊膏,具有高信赖的低离子性卤素之活化剂系统,使其在回焊之後的残渣,即使免洗也能拥有极高的可靠性。
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使用特性:
1.) 连续印刷时,其粘度极少经时变化,可获得非常稳定印刷。 

2.) 对0.4—0.6mm及以上间距的电路,可完成精美的印刷。 

3.) 拥有极佳焊接性,可在不同部位表现出适当的润湿性。

4.) 可适用于一般大气下或氮气之回焊炉。

5.) 于极高之尖峰温度下,亦能获得良好的焊接性。


成分与特性
G-552无铅锡膏的各种特性,如表—1及表—2

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炉温曲线图
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A.预热区:升温速率为1.0—3.0℃/秒。

B.恒温区:温度:130—160℃,时间:60—150秒,升温速度:<2℃/秒。

C.回焊区:最高温度:210—230℃,时间:183℃(熔点以上)50—90秒(Important),高于200℃时间为30—90秒。

D.冷却区:降温速率<4℃


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