Jefa baƙin ƙarfe waldi

Iron - shi ne, kamar yadda aka sani, da baƙin ƙarfe, da carbon gami. Da abun ciki na karshen ya zama mafi girma daga kashi biyu cikin dari. Dangane da jihar da gami shi ne carbon, rarrabe m da fari -daban na Cast baƙin ƙarfe. A farko nau'i na carbon ne a cikin nau'i na graphite, a cikin free jihar, shi kayyade ta da kyau machinability. Tun da fari Cast baƙin ƙarfe, wannan kashi ne a daure jihar, shi ne kusan ba zai yiwu ba ga Weld. A nuna daga cikin kayan ne haske a cikin launi.

Ta yaya ne Cast baƙin ƙarfe waldi? Bari mu fara da cewa wannan abu - ba da mafi dace da irin wannan magani. Lokacin da waldi shi deforms da shi sauƙi fasa. Wannan shi ne saboda da musamman tsarin da carbon a cikin karaya. Oiled Cast baƙin ƙarfe, kazalika da waɗanda suka yi halartar daukan hotuna zuwa daban-daban lalatattu kafofin watsa labarai, ba za a iya welded. Wannan, duk da haka, su ne manufa iri da suke da lafiya grained da haske launin toka launi. Waldi baƙin ƙarfe yana da illa: whitening kuma a sakamakon, da ya faru na gida da yin waldi fari da baƙin ƙarfe Layer wanda ba ya ara da kanta ga babu magani; Kamar yadda aka ambata a riga, da samuwar fasa. kara irin ƙarfin lantarki a cikin waldi zone. da Weld pool karfe iya zama porous saboda carbon burnout da lokaci daya samuwar carbon dioxide. Saboda haka, wannan tsari yana sa mai yawa matsaloli. Amma duk da haka waldi Cast baƙin ƙarfe da ake amfani da quite yadu. Yana yana da uku main hanyoyi: sanyi da kuma zafi ga wasan kusa.

Na farko shi ne rashi na preheating. Cold waldi na Cast baƙin ƙarfe ne, Ya sanya daga karfe, jefa baƙin ƙarfe da kuma sanya wadanda ba ferrous karafa da kuma wayoyin gami. Babban abu da wannan - su kauce wa tsanani zafi a cikin zãfi-shafi zone. Domin wannan karfe wayoyin amfani da wani farko lantarki Layer superposed kananan diamita da kananan carbon abun ciki, mai bakin ciki shafi. Amperage a wannan mataki ya kamata ba ƙetare 90 amps. M yadudduka ake superposed wayoyin na mafi diamita, da shafi na iya zama ko dai bakin ciki ko lokacin farin ciki.

Daya muhimmanci mulki - ƙarfe gidajen abinci bukatar tambaya da 'yan interruptions zafi-shafi zone zafin jiki ba ya wuce sittin digiri.

Idan waldi ya kamata a yi a kan m sassa, sa'an nan za ka iya amfani da wani musamman na'urar. Wannan ake kira vvertyshi - musamman studs, wanda aka sanya na m karfe. Su nufi - danganta da Weld karfe tare da baƙin ƙarfe. Welding aka yi na farko, a kusa da su, sa'an nan - a cikin saba hanya. Lokacin da shi wajibi ne don Weld wani Fitar lahani, fissures da sauran rauni da maki, sau da yawa amfani da wayoyin sanya daga gami dangane nickel ko jan karfe. Inganta graphitization, suka hana fitowan da wani m sashi na bleaching. Waldi baƙin ƙarfe a gida yafi samar sanyi Hanyar. Wannan za a iya amfani da wani daga cikin iri na wayoyin da aka ambata a sama.

Hot baƙin ƙarfe waldi ya shafi dumama workpiece kafin aiki tare da shi. Irin wannan hanyar rage-rage ƙarfin lantarki na karfe tsarin. Domin Semi Hanyar - An modified zafi. Yana da wani ƙarfe na graphitization da kuma janar ko gida dumama zuwa wasu zazzabi. Wadannan hanyoyin da ake amfani da hanyoyi daban-daban.

Idan kana so ka sa waldi na mutum sassa sanya na Cast baƙin ƙarfe, wanda idan da amfani da sanyi waldi Hanyar. Idan aikin ne da za'ayi a cikin shuka, a kan wani m sikelin, amfani da zafi Hanyar.