上海磷化加工厂家

上海磷化加工厂家厂家

厂商 :上海路丰表面处理有限公司

地址 :上海 上海
主营产品 :防锈油 达克罗加工 表调剂 脱脂剂 磷化液 磷化加工 化学镀
联系电话 :15221870250
商品详情描述
上海路丰助剂有限公司是专业从事于金属表面处理的高科技企业。
拥有最先进的磷化加工生产工艺,保证能为客户提供优质的磷化加工服务。
公司在职员工有200多人,我们致力于环保的金属表面处理。
已通过了ISO9001-2008TS16949质量体系认证。
公司坐落于上海市宝山经济开发区,交通便利,物流方便,能够为客户及时提供优质的产品。
影响磷化的工艺因素-几何外观
1.工件形状更简单对磷化层的形成更是方便。但是,钢铁形状太复杂磷化比较困难。
2.好比说腔体零部件,特别是内腔,铆接件,焊接件的地方等。由于脱脂不彻底,以及磷化膜经常很浅或不在一起,耐腐蚀性很困难,所以钢铁零件应该先磷化再焊接比较好。
3.热处理取决了钢铁的组成,因热处理方法的不同,磷化出来的钢铁也不一样。钢铁烧火后镁合金和珠光体比钢铁件更容易腐蚀,造成磷化后在钢铁件的部分地方可能出现白色块点。
4.在过热处理造成粗大晶体的区域,可能会出现白色斑块。同时镁合金的组织比磷化液组织的点位正,所很难磷化。
5.去火前因脱脂不干净,以及用较浓的亚硝酸钠磷化,在高温时亚硝酸钠会分开,工件表面有不磷化的可能性假如钢铁表面有一层薄而致密的磷化膜,这层磷化膜可抗腐蚀性。造成钢铁不容易磷化。
6.因此,改变钢铁件空心退火条件,表面脱脂处理。并减少亚硝酸钠的浓度,这样,工件磷化时效果更好。
7.镁合金在热处理后组织发生改变,磷化膜更加繁杂,因为镁合金的抵抗腐蚀的能力要厉害得多。
8.这是由于温度达不到,导致工件的合金度偏小,存在较多未融化的碳化物,造成工件性能变化,所以上海磷化加工比较困难。
9.结果造成上海酸洗磷化加工部分组织的部分磷化完整时,晶体却腐蚀很严重。所以肯定要控制好合理的时间。
10.磷化时不容易酸蚀,上海磷化加工厂家反应的首要条件是先腐蚀金属的表面层,阻碍磷化的反应。有时还因热处理温度不够,可能造成工件磷化时间延长1.5倍。
11.有时候因为温度不高,上海黑色磷化加工厂家导致合金钢的合金度偏低,存在较多的合金碳化物,导致高合金固体溶液的性能变坏,从而磷化处理更为困难。
1. The more simple shape to etch layer formation is more convenient. However, iron and steel shape too complicated phosphating is difficult.
2. Such as cavity body parts, especially in the inner chamber, riveting pieces, weldments place, etc. Due to skim not thoroughly, and phosphating film often very shallow or not together, corrosion resistance is difficult, so steel parts should first phosphating and welding is better.
3. Heat treatment depends on the composition of the iron and steel, for heat treatment method is different, phosphating out of steel is different also. Iron and steel after the magnesium alloy and pearlite steel than it is more easy to corrosion, cause in the iron and steel parts after phosphide parts may appear white spots.
4. In heating treatment cause bulky crystal area, may appear white patches. At the same time, the organization of the magnesium alloy than the phosphating liquid organizations point is, it is difficult to phosphate.
5. Spent for degreasing before not clean, and with a thick sodium nitrite phosphating, high temperature sodium nitrite can separate, workpiece surface is not the possibility of phosphide if steel surface with a layer of thin and dense phosphating film, this layer of phosphating film can be corrosion resistance. It is not easy to cause steel phosphating.
6. Therefore, change iron and steel parts hollow annealing conditions, surface degreasing process. And to reduce the concentration of sodium nitrite, so that, when the workpiece phosphating effect is better.
 
标签:
防锈油
达克罗加工
表调剂
脱脂剂
磷化液
磷化加工
化学镀
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