Ndedzipi nzira dzekudziya dzakadzimwa zvikamu zve induction kupisa chira ?

Chinangwa chikuru chekudziisa kupisa choto kudzima workpiece tempering ndeyekudzikisa kudzima kushushikana uye kudzivirira kudzima mitswe; dzimwe nguva, tempering ndiko kuderedza kuoma kusangana hwokugadzira zvinodiwa workpiece.

Pane dzinenge nzira nhatu dzekutsamwisa workpiece mushure mekudzima mune induction yekupisa choto:

(1) Kana iyo yekuzvimisa-hasha workpiece ichidzimwa, kutonhora hakupfuuriri kusvika kumagumo uye kunovhiringidzwa pachine nguva, kuitira kuti kupisa kwakasara kwakatarisana nepakati peiyo yakaomeswa tambo inotamirwa kune yakaomeswa layer, kuitira kuti iyo yakaoma. layer inodziiswa zvakare kuti isvike imwe tembiricha inodziya. Ita iyo yakaomeswa layer iwane chimiro chinodiwa uye kuita. Iyi nzira yaishandiswa kudzima simbi dzematurusi uye simbi dzesimbi mumazuva ekutanga.

Muyaichimbova Soviet Union kutanga kwezana ramakore rechi20, makore 50, akatanga kushandiswa induction furnace akaomeswa workpiece, senge crank magazine, giya, akati wandei mapini uye zvimwe zvikamu zvemotokari, maitiro anogona kushandiswa muFIG. 3-21 kusvika FIG.

Mune mamwe maitiro ekuzvidzora, nhanho 4 kusvika ku5 inotonhodzwa nekupfapfaidza mvura zvakare, nepo mukunyanya kuzvidzora, nhanho 4 kusvika ku5 inobvumira workpiece kutonhora zvakasikwa mumhepo.

Kubatsira kwemaitiro ekuzvidzora ndeyekuti inochengetedza seti yemidziyo yekupisa. Tora crankshaft journal quenching semuenzaniso. Nekuda kwekugamuchirwa kweichi chiitiko muchirimwa chekugadzira mota, choto chinopisa chine simba re100kW uye nzvimbo yekugadzira ye30m 2 inochengetwa pamutsetse wekugadzira. Mukuwedzera, inochengetedza magetsi uye mari yekugadzirisa. Nekudaro, iyo yekuzvidzora maitiro inewo zvikanganiso, saka mashandisiro ayo ane mashoma.

1) Iyo yekuzvimisa-yega inongokodzera maworkpieces ane kukwana kwakasara kupisa mukati meiyo workpiece mushure mekupisa, uye yakasara yekupisa kuchinjisa kune ese mapeji eakaomeswa layer inofanira kunge yakafanana; kana zvisina kudaro, kuoma kwechiso chakadzimwa che workpiece kunopesana mushure mekuzvidzora , Uye kunyange nzvimbo dzega hadzina kuzvidzora. Semuyenzaniso, mushure mekudziya kamwe chete uye kudzimwa kwemotokari flywheel ring giya, 48-56HRC inodiwa. Kuzvidzora kunoshandiswa kuti uwane zvibereko zvakanaka. Iko kuzvidzora kwekushisa kwechikamu chimwe nechimwe chemhete yegiya iyunifomu. Zvisinei, kana crankshaft journal yakadzimwa, iyo inonzi edge effect inoonekwa pajenari guru repakati uye jenari huru padivi reflange, ndiko kuti, kuzvidzora kwekushisa kwechikamu chepakati chejenari kwakakwirira; uye nzvimbo yekushandura kumativi ose ari pedyo ne crank. Inopisa simbi uye inobvisa kupisa nekukurumidza, uye kuzvidzora kwekushisa kwakaderera. Nokudaro, kuoma kwechikamu chepakati chechikamu chose chakaderera, nepo kuoma kwezvikamu zvekushandura kumativi ose maviri kune zvakakwirira. Ichi chikamu ndicho chinotemesa stress zone uye ndicho chinonyanya kudzima mitswe.

Mhedzisiro yemupendero inogona kuenzanisirwa muMufananidzo 3-22. Iko kuzvidzora kunokonzera mukati mechikamu chemuenzaniso chakanaka, uye mhedzisiro kumativi ose haina kunaka, zvichiita kuti kuoma kwakasiyana kwe5HRC. Miedzo yakaratidza kuti kuzvidzora kwakakodzera kupisa maworkpieces ane dhayamita hombe uye hukuru hwekupisa huwandu, kureva, d> m, nehupamhi hwekupisa kwekushisa. Iyo haina kukodzera kupisa conduction kudziyisa nzira uye workpieces ine dhayamita diki uye diki diki kupisa kwepakati.

2) Imwezve mukana mukuru wekuzvidzora ndeyekuenderana kwayo nenguva. Sezvatinoziva tese, induction kupisa chira kudzima maworkpieces kazhinji kunoda kudzikamisa panguva kudzivirira kutsemuka kusati kwapisa. Muchiito chekugadzira chekuzvidzora, zvinoratidzwa kuti nekuda kwekudziya panguva, zvine mhedzisiro iri nani yekudzivirira kuputika kwekamera yecamshaft uye mamwe maworkpieces anowanzo kutsemuka isati yapisa. ”

(2) Kupisa kwe induction kupisa choto

Mune yemazuva ano induction yekudziya yevira yekudziya zvigadziriso, kushandiswa kweiyo induction yekupisa choto kupisa kuri kuwedzera zuva nezuva. Chikonzero ndechekuti inogona kugadzirwa pa-line, kupfupisa kutenderera kwekugadzira, uye kugadzirisa mamwe matambudziko asingagoni kugadziriswa nekuzvidzora.

Induction yekudziya choto kupisa iri nyore, inogona kugadzirwa pa-line, uye inogadzirisa zvakaipira kuzvidzora, senge edge athari, uye inoshandiswa mukugadzirwa kwemazuva ano. Pane kazhinji nzira mbiri dzekudzima induction kupisa choto:

1) uchishandisa yekutanga kudzima kupisa magetsi emagetsi, iyo yekutanga induction yekupisa choto, mudziyo une nzira yekudzikisa simba. induction kupisa chira tempering. Kubatsira kweiyi nzira ndeyokuti kudzima uye kudzikamisa maitiro kunopedzwa mune imwe kurodha uye kurodha, asi nekuda kwekuti chiteshi chekudzima chinogarwa, chibereko chinodzikira.

Iyi nzira inoshandiswa kune zvidimbu zvidiki izvi senge midhudhudhu cranks. Mushure mehafu-axis scanning kuomeswa, 1/5 kusvika 1/6 yepakati frequency voltage yekudzima maitiro neiyo inductor imwechete yakashandiswa kupisa mu scanning induction yekupisa choto. Izvo zvakashata ndezvekuti yekutanga kudzima magetsi ekudziya magetsi inoshandiswa mukupisa yakaderera tembiricha mamiriro, uye iyo yazvino frequency inofanirwa kunge yakakwira kupfuura yakajairika frequency. Nokudaro, kupisa kwechigadziko chakaoma kunoenderana zvachose nekugadzirisa kupisa, uye kushanda kwayo kwekushisa kwakaderera.

2) Shandisa imwe seti yakakodzera yakaderera frequency magetsi magetsi uye inductor yekudziya, uye iyi nzira iri kushandiswa zvakanyanya ikozvino. Nekuti tembiricha yekudziya ye induction yekudziya moto wakadzimwa zvikamu zvakaderera pane Curie point, uye mazhinji acho akadzikira kupfuura 300 ℃, panguva ino, iko kudzika kwekupinda mukati pakudzika kwakadzika kunowanzo 1/10 yekudzika kwekupinda ikozvino pa800. ℃ ~ 1/4 . Naizvozvo, iyo yazvino frequency yakasarudzwa yekudziya iyo workpiece yakaderera zvakanyanya pane yazvino frequency panguva yekudzima uye kupisa. Itsika kushandisa 1000 ~ 4000Hz, uye mamwe anoshandisa zvakananga simba frequency, senge silinda liner uye flywheel mhete magiya.

Tempering inductors inowanzo shandisa kutendeuka kwakawanda, mukaha uri pakati pemhete inoshanda uye workpiece inowedzerwa, uye nzvimbo yehasha chikamu inowanzova yakakura kupfuura nzvimbo yakadzimwa. Hub tempering sensor, sezvakaratidzwa mumufananidzo 3.23.

Kana iyo semi-shaft ikatora iyo yekuvheneka kudzima maitiro, kudziya kwayo kunodzikiswa neiyo induction yekupisa choto. Panguva ino, imwe yakaderera frequency sosi yemagetsi inoshandiswa uye yakawanda-inotendeuka inductor inoshandiswa kupisa uye kupisa kamwe chete.

3) Zvakanakira induction kupisa choto kupisa:

① Inguva pfupi yekupisa, kugadzirwa kwepamusoro, induction yekupisa muto yakaderera tembiricha yekupisa kupisa mwero ndeye 4 ~ 2 (H : / s, yepakati nepamusoro tembiricha yekupisa kupisa mwero i5 ~ 30Y/s, silinda liner inoshandisa simba frequency tempering, 3 zvidimbu pa. nguva , 220 ℃ Tempering nguva iri 30 ~ 40s.

② Yakagadzikana uye iri nani michina zvivakwa zvinogona kuwanikwa.