Kungani i-sheave noma idonsa idinga ukwenziwa mnyama nge-phosphate?

I I-PULLEY iyingxenye yohlobo lwehabhu, futhi impahla ngokuvamile iyinsimbi eyinsimbi. Inqubo yokukhiqiza ngokuvamile isekelwe ekubunjweni nasekufakeni. Ngakho-ke, imikhiqizo ye-pulley ngaphandle kokwelashwa okungaphezulu ijwayele ukuba nama-burrs phezulu futhi ingase ilimaze izandla zakho. Zingase futhi zibe nokugqwala ngemva kokusetshenziswa isikhathi eside endaweni enomswakama. ukugqwala okwenzekayo.

Njengamanje, ukwelashwa okungaphezulu okuvame ukusetshenziswa kwama-pulleys kuyi-phosphating nokuba mnyama. Inqubo iwukukhipha uwoyela nokugqwala - ukuhlanza amanzi - ukufakwa kwendawo - i-phosphating - ukuhlanza amanzi - ukwelashwa kwe-chromate - ukomisa - ukwelashwa kwamafutha noma ukudaya:

Ngemuva kokuthi i-pulley i-phosphated futhi ibe mnyama, i-pulley iba nokubukeka okungcono komnyama. Okubalulekile ukuthi ngemva kokuba i-pulley i-phosphated futhi imnyama, akulula ukugqwala. Impilo yesevisi ye-pulley inwetshwa kakhulu, engasiza ngokuphumelelayo amakhasimende ukunciphisa izindleko.