Ukwelashwa Steel Heat

Steel ukwelashwa Heat kungase kwenziwe ngezindlela ezihlukahlukene. Ochwepheshe ukuhlukanisa phakathi kukho okulandelayo:

1. Kokudubula.

2. Kokulinganisa.

3. ukuqina.

4. Shiya.

ukwelashwa ukushisa of okuhlinza calcination mkhiqizo eliwu lokushisa 840 kuya ku-900. Ngalesi lokushisa, ukuchayeka Kwenziwa amahora okungenani ezimbili, indlu senzeka nge esithandweni somlilo.

Lezinsimbi ngale ndlela isetshenziswa womshini imikhiqizo kakade omnene noma uma isidingo umkhiqizo omusha ngenxa intukuthelo kuhlulekile esidlule. Ngokuningiliziwe unfired okwalandela lokushisa ithonya yakha imifantu eziyoholela heterogeneity e isakhiwo sensimbi. Lokhu, kakhulu ona izinga lomkhiqizo.

Labadubuli izingxenye ezincane isebenzisa omkhulu steel izintonga Glowing, kanye lapho futhi selehlile. Kwezinye izimo, i-isibani acetylene isetshenziselwa bafudumale. Ukuze indlu kancane kancane umkhiqizo, ithoshi kancane kancane ezihambayo kude naye.

ukwelashwa ukushisa of okuhlinza by izingxenye normalizing kuyinto Ukushisa lokushisa oyifunayo futhi pholisa nabo emoyeni.

Tempering kuyinto ukushisa kanye nokupholisa okusheshayo. ukwelashwa okunjalo ukushisa lisetshenziswa carbon steel futhi abanye ingxubevange zinhlobo metal. Ngenxa yalokho yemiphumela enjalo ushintsho we ngehele crystal leyo nto - ke Uthola ephakeme ukumelana ukugqwala kanye ubulukhuni. Lapho okuqukethwe carbon ku steel kuze kufinyelele 0.3% tempering is hhayi lwenziwa. Amazinga Ukushisa kuyakhethwa kuncike grade metal. Adlula ubukhulu lokushisa ezivunyelwe ( "perezhig") kuzoholela ekulahlekeni yayo izakhiwo steel. Imiphumela iba yinhlanganisela yokukhandleka umshado unomphela.

Ukuvimbela izingxenye ezincane perezhiga esebenzayo ukuma osuke usushisa kakade (endlunkulu). Rapid umkhiqizo Ukupholisa inikeza tempering okuqinile. Ngenxa yalokho, bangase akha abalulekile ukucindezeleka yangaphakathi, kwezinye izimo, ngisho ufa. Nokho, uma kudingwa kancane ukupholisa tempering ubulukhuni ngeke kutholakale.

Njengoba lwaluyophola amanzi aphakathi isetshenziswa, uwoyela, emoyeni noma isixazululo aqueous. Salt (plain), nitrate, noma i-sodium hydroxide, kunezelwa coolants, Ingasheshisa indlu. Ukuze kuncishiswe izinga lwaluyophola amanzi sengezwe isixazululo insipho, amanzi ingilazi, i emulsion uwoyela, nobisi lime kanye nezinye izingxenye.

Ngo ezilandelanayo ukuqina sebuningini izinto ezisetshenziswayo esibuthakathaka ezinkulu noma njalo ukushintsha amanzi. Esimweni esinjalo enikeziwe a eqeda iyunifomu.

Ukupholisa ngokwanele okusheshayo futhi umfaniswano steel kwenzeka isixazululo engu-amaphesenti 8-12 kasawoti ezivamile namanzi, noma i-sodium hydroxide at degrees 20.

Indawo kuyinto Ukushisa izingxenye lokushisa elinqunyiwe, ebambe kanye nokupholisa okusheshayo. Lokhu processing indlela sisetshenziswa, ngemva ukupholisa imikhiqizo ngesikhathi lukhuni futhi ukunciphisa brittleness kancane ubulukhuni. Kunezinhlobo ezintathu izinhlobo iholide: eliphezulu, ongaphakeme naphakathi. Uhlobo oluvame kakhulu i-ukucutshungulwa ongaphakeme. Ngakho, lapho ukufuthelana 170 degrees ukucindezeleka yangaphakathi sisuswa umkhiqizo ngaphandle kokushintsha ubulukhuni impahla.

Kuyinto ahlukene zinhlobo ukwelashwa thermochemical ensimbi. Le nqubo ihlanganisa imithelela lokushisa kanye saturation ebusweni noma omunye isici metal. Lokhu kwelashwa kwenza kube nokwenzeka ukuba ushintshe amakhemikhali ukwakheka, properties kanye microstructure zezendlalelo yendwangu.

Chemical-ezishisayo umphumela zihlanganisa nitriding, carburizing, aluminizing, cyanidation, siliconizing nezinye izindlela.