Isithando somlilo sokungeniswa siwenza kanjani amabhola ensimbi?

Amabhola ensimbi angahlukaniswa abe izigaba ezintathu okuhlanganisa amabhola aphezulu e-chromium, amabhola e-chromium aphakathi namabhola e-chromium aphansi.

1. Inkomba yekhwalithi yebhola le-chromium ephezulu

Okuqukethwe kwe-chromium kwebhola le-chromium ephezulu kukhulu noma kulingana no-10.0%. Okuqukethwe kwekhabhoni kuphakathi kuka-1.80% no-3.20%. Ngokwamazinga kazwelonke, ubulukhuni bebhola le-chromium ephezulu akumele bube ngaphansi kuka-58hrc, futhi inani lomthelela kufanele libe likhulu noma lilingane no-3.0j/cm2. Ukuze kuzuzwe lobu lukhuni, ibhola eliphezulu le-chromium kufanele licinywe futhi lishiswe ezingeni lokushisa eliphezulu. Njengamanje, kunezindlela ezimbili zokucisha amabhola aphezulu e-chromium e-China, okuhlanganisa ukucisha uwoyela nokucisha umoya. Uma ubulukhuni bokuhlola bebhola le-chromium ephezulu bungaphansi kuka-54HRC, kusho ukuthi abukacishwa.

2. Inkomba yekhwalithi yebhola le-chromium eliphakathi

Okuqukethwe kwe-chromium okucacisiwe kwebhola le-chromium emaphakathi kusuka ku-3.0% kuya ku-7.0%, futhi okuqukethwe kwekhabhoni kuphakathi kuka-1.80% no-3.20%. Inani lawo lomthelela akufanele libe ngaphansi kuka-2.0j/cm2. Amazinga kazwelonke adinga ukuthi ukuqina kwebhola le-chrome kufanele kube kukhulu noma kulingane no-47hrc. Ukuze kuqinisekiswe ikhwalithi, amabhola e-chromium aphakathi nendawo kufanele athenjiswe ezingeni lokushisa eliphezulu ukuze kuqedwe ingcindezi yokuphonsa.

Uma ubuso bebhola lensimbi bumnyama futhi bubomvu, bufakazela ukuthi ibhola lensimbi liye labhekana nokwelashwa kokushisa okuphezulu. Uma ubuso bebhola lensimbi busenombala wensimbi, singahlulela ukuthi ibhola lensimbi alizange lithole ukwelashwa kokushisa okuphezulu.

3. Inkomba yekhwalithi yebhola le-chromium ephansi

Ngokuvamile, okuqukethwe kwe-chromium kwebhola le-chromium ephansi kungu-0.5% kuya ku-2.5%, futhi okuqukethwe kwekhabhoni kusuka ku-1.80% kuya ku-3.20%. Ngakho-ke, ngokwamazinga kazwelonke, ubulukhuni bebhola le-chromium eliphansi akumele bube ngaphansi kuka-45hrc, futhi inani lomthelela akufanele libe ngaphansi kuka-1.5j/cm2. Amabhola e-chromium aphansi nawo adinga ukwelashwa kokushisa okuphezulu ukuze kuqinisekiswe ikhwalithi. Lokhu kwelashwa kungaqeda ukucindezeleka kokukhipha. Uma ingaphezulu lebhola lensimbi libomvu elimnyama, libonisa ukuthi liye labhekana nokwelashwa kokushisa okuphezulu. Uma ingaphezulu lisesensimbi, kusho ukuthi ibhola lensimbi alizange lihlanjululwe ekushiseni okuphezulu.

Amabhola ensimbi asetshenziswa ngokuvamile ezitshalweni ezihlukene zikasimende, izitshalo zamakhemikhali, izitshalo zamandla, izitshalo zesihlabathi se-quartz, izitshalo zesihlabathi se-silica, njll. zokumbiwa kwezimayini ezinkulu.