Iingubo zokuguqulwa kwe-Phosphating

Unyango oluvunyiweyo lwangaphambili lwee-substrates zentsimbi kanye phambi kokusetyenziswa kwe Ipeyinti yi-phosphating enokwahluka kubunzima bokugquma.

Ubukhulu bobunzima bokugquma kokukhona mkhulu iqondo lokuxhathisa umhlwa okuphunyeziweyo; okungaphantsi kobunzima bokugquma bhetele iimpawu zomatshini. Ngoko ke kuyimfuneko ukukhetha ukuhambelana phakathi kweempawu zoomatshini kunye nokumelana nokubola. Ubunzima bokugquma bephosphate ephezulu bunokubangela ingxaki kumgubo wokwaleka ngokokwaphuka kwekristale xa utyatyazo luphantsi kwamandla omatshini asetyenziswa ekuhlaleni, umz. ukugoba okanye impembelelo.

Ngenxa yokuncamathela okugqwesileyo komgubo wokwaleka kwi-phosphate yokwaleka, ukuchithwa kuya kwenzeka ngokuqhelekileyo kujongano lwe-phosphate/metal substrate endaweni ye-phosphate/powder coating interface.

Iingubo ze-phosphate zihlanganiswe yi-BS3189 / 1959, i-Class C ye-zinc phosphate kunye ne-Class D ye-iron phosphate.
I-fine grain crystalline zinc phosphate iyanconywa kwi-coating weights ye-1-2g / m2 kunye ne-iron phosphate kwi-0.3-1g / m2. Ukusetyenziswa kunokwenziwa ngesitshizi okanye ukudipha. I-chromate passivation ayidli ngokuba yimfuneko.
I-zinc phosphate inokutshizwa okanye idiphu igalelwe kwinqanaba elihlanu, oko kukuthi. i-alkali degrease, i-rinse, i-zinc phosphate, iirinse ezimbini zamanzi.

Iingubo ze-iron phosphate zikholisa ukutshizwa kumanqanaba amathathu okanye amane. Umsebenzi udla ngokudlula kumacandelo amabini okuhlamba amanzi ngaphambi kokuba womiswe.
Kubalulekile ukuba i-workpiece emva kwe-phosphating ibe ngumgubo ngokukhawuleza emva kokumisa.