Fosfat canza sutura

The gane pre-jiyya ga karfe substrates kafin aikace-aikace na foda kayan shafa shine phosphating wanda zai iya bambanta a nauyin sutura.

Mafi girman nauyin juzu'in jujjuyawar juriya da aka samu; ƙananan nauyin suturar mafi kyawun kayan aikin injiniya. Don haka ya zama dole don zaɓar sasantawa tsakanin kaddarorin inji da juriya na lalata. High phosphate shafi nauyi na iya ba da matsala tare da foda coatings a cikin cewa crystal karaya iya faruwa a lokacin da shafi ne hõre gida amfani inji sojojin, misali. lankwasawa ko tasiri.

Saboda kyakkyawan mannewa na foda na foda zuwa phosphate shafi, rarrabuwa yawanci faruwa a phosphate / karfe substrate dubawa maimakon a phosphate / foda shafi dubawa.

Ana rufe suturar phosphate ta BS3189/1959, Class C don zinc phosphate da Class D don baƙin ƙarfe phosphate.
Ana ba da shawarar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta ta 1-2g/m2 kuma ga baƙin ƙarfe phosphate a 0.3-1g/m2. Ana iya yin aikace-aikacen ta hanyar fesa ko tsoma. Passivation na chromate ba yawanci ba ne.
Zinc phosphate na iya zama ko dai a fesa ko kuma a tsoma a cikin aiki na mataki biyar, watau. alkali degrease, kurkura, zinc phosphate, kurkura biyu na ruwa.

Ana fesa suturar baƙin ƙarfe phosphate a cikin aiki mataki uku ko huɗu. Aikin yakan wuce ta sassan ruwa guda biyu kafin bushewa.
Yana da mahimmanci cewa kayan aikin bayan phosphating an shafe foda da wuri-wuri bayan bushewa.