Amagwiritsidwa ntchito nthawi zambiri m'mphepete mwa mawonedwe akuthwa ndi ma bores.Izi ndi zamphamvu kuposa zida zazitsulo za carbon high-carbon zomwe zakhala zikugwiritsidwa ntchito kuyambira 1940s monga momwe zingathere kutentha kwapamwamba popanda kusokoneza mphamvu zawo (kuuma).Katunduyu amathandizira HSS kudula mwachangu kuposa chitsulo cha carbon, motero mawu akuti High Speed ​​Steel.Kutentha kwapakati, mkatimo, nthawi zambiri, kumapereka chithandizo cha kutentha, ndemanga za HSS, makamaka, zimasonyeza kuuma kwakukulu (pamwamba pa Rockwell hardness 60) ndi kutsutsana ndi malo (makamaka okhudzana ndi tungsten ndi vanadium zomwe zimagwiritsidwa ntchito kawirikawiri HSS) kusiyana ndi mpweya wabwinobwino ndi chipangizo amakonzekera.

Mapulogalamu

Kugwiritsa ntchito kwambiri Speed ​​​​Speed ​​​​kukonzekera kumapitilirabe pakuphatikiza zida zosiyanasiyana zodulira: kubowola, matepi, zodulira, zodulira zida, zodulira (magiya) ocheka, m'mphepete lakuthwa, planer, m'mphepete, ma switch, ndi zina zotero. ., ngakhale kuti kugwiritsa ntchito nkhonya ndi kukankha ndowa kukukulirakulira.

Kukonzekera mwachangu kwapeza kagawo kakang'ono m'zida zabwino zamanja pomwe moyo wawo wautali komanso wolimba kwambiri komanso kutsutsidwa kwapang'onopang'ono kumawapangitsa kukhala oyenera kugwiritsa ntchito zothamanga kwambiri zomwe zimafunikira nsonga yakuthwa, monga matabwa, zotchingira, nsonga zandege, ndi masamba akukhitchini. ndi mipeni yopinda yochokera ku Damasiko.

Zida zachitsulo zothamanga kwambiri ndizodziwika bwino kwambiri kuti zigwiritsidwe ntchito popanga matabwa, chifukwa mlingo wa ntchito yodutsa m'mphepete mwake ndi yofulumira pazida zam'manja, kotero HSS ili ndi m'mphepete mwatali kwambiri kuposa zipangizo zamakono za carbon zitsulo.

Mitundu

Mapangidwe ofulumira ndi ma amalgam omwe amachokera ku zitsulo zingapo zophatikizira ku chitsulo cha kaboni, monga tungsten ndi molybdenum, kapena kuphatikiza ziwirizi, nthawi zina zokhala ndi zosakaniza zosiyana.Iwo ali ndi udindo mumagulu ambiri a Fe - C - X omwe X amatanthauza chromium, tungsten, molybdenum, vanadium kapena cobalt.Gulu la X limagwiritsidwa ntchito nthawi zambiri kuposa 7 peresenti, pamodzi ndi 0.60 peresenti ya carbon.

Makalasi amtundu wa Tungsten (mwachitsanzo, T1, T15) mu dongosolo lophatikiza manambala (UNS) amapatsidwa manambala mumtundu wa T120xx, pomwe molybdenum (mwachitsanzo M2, M48) ndi T113xx ndipakati pamayendedwe amsewu.Makhalidwe a ASTM amawonetsa mitundu 7 ya tungsten ndi mitundu 17 ya molybdenum.

Kukula kwa pafupifupi 10% ya tungsten ndi molybdenum palimodzi kumawonjezera kulimba ndi kulimba kwa Liwiro Lalikulu kumakonzekeretsa ndikusunga zinthuzo pakutentha kwakukulu komwe kumachitika podula zitsulo.

Zingakhale bwanji zolimba?

Pamene mukuganiza za HSS kudula chida, kuganizira kutentha.Kutentha kocheperako komwe mumapanga (mu chipangizocho), chida chokoka kwambiri chimatha.Mukatentha kuchitira HSS mumapita kumalo otentha (omwe nthawi zambiri amatchedwa kutentha kwakukulu) kwa nthawi yodziwika.Izi zimapereka HSS kuuma kwake kotsimikizika, komabe ndiyofooka kwambiri.Kenako adatengera kutentha kuti "kukwiyitsa kapena kujambula".Izi zimakwaniritsidwa kangapo.Izi zimanyamula kuuma komwe mukuzifuna ndipo zimapereka kulimba kwa HSS (zonse kuuma ndi mphamvu zimayendetsedwa ndi gulu lazinthu).Kutentha sikuyenera kupitirira kugwiritsa ntchito kapena kuwongolera chipangizocho kapena chidzalimba (kumasuka).Izi zidzasiyana kuchokera kuzinthu zingapo (Rc) kupita kumunsi kwathunthu.Uku ndi kumveka kofunikira kwambiri kwa HSS yopindulitsa kwambiri.

Malingaliro a kampani Shanghai Histar Metal Co., Ltd

www.yshistar.com