AISI 4340 Icyuma 36CrNiMo4 1.6511 EN24 817M40 SNCM439

AISI 4340ibyumani karubone iciriritse, ibyuma biciriritse bizwiho gukomera n'imbaraga mubice binini ugereranije. AISI 4340 nayo ni ubwoko bumwe bwa nikel chromium molybdenum. 4340 ibyuma bivangwa nubusanzwe bitangwa bikomye kandi bigashyirwa mubipimo bya 930 - 1080 Mpa. Ibyuma bikarishye kandi bikonjesha ibyuma 4340 birashobora gukomeza gukomera hejuru yumuriro cyangwa induction gukomera hamwe na nitriding. Ibyuma 4340 bifite ihungabana ryiza ningaruka zo guhangana kimwe no kwambara no gukuramo abrasion mubihe bikomeye. Ibikoresho bya AISI 4340 bitanga ihindagurika ryiza muburyo bufatika, bikemerera kugorama cyangwa gushingwa. Gusudira hamwe no kurwanya gusudira nabyo birashoboka hamwe nicyuma cyacu 4340. Ibikoresho bya ASTM 4340 bikunze gukoreshwa aho ibindi byuma bivanze bidafite imbaraga zo gutanga imbaraga zisabwa. Kubice byatsindagirijwe cyane ni amahitamo meza. AISI 4340 ibyuma bivanze nabyo birashobora gutunganywa muburyo bwose busanzwe.

Kubera kuboneka ibyuma byo mu rwego rwa ASTM 4340 akenshi bisimbuzwa ibipimo ngenderwaho bishingiye ku Burayi 817M40 / EN24 na 1.6511 / 36CrNiMo4 cyangwa Ubuyapani bushingiye ku byuma bya SNCM439. Ufite amakuru arambuye yicyuma 4340 hepfo.

1. AISI Alloy 4340 Urwego rwo gutanga ibyuma

4340 Icyuma kizenguruka ibyuma: diameter 8mm - 3000mm (*Dia30-240mm mububiko bumeze neza, byoherejwe ako kanya)

4340 Isahani yicyuma: uburebure bwa 10mm - 1500mm x ubugari 200mm - 3000mm

4340 Icyiciro cya Grade: 20mm - 500mm

Kurangiza: Umukara, Imashini idakabije, Yahinduwe cyangwa nkuko bisabwa.

2. AISI 4340 Ibisobanuro byibyuma nibipimo bifatika

3. ASTM 4340 Ibyuma kandi bingana Ibigize imiti

4. AISI Alloy 4340 Ibyuma bya mashini

Ibyiza bya Thermal

5. Guhimba 4340 Amashanyarazi

Shyushya ibyuma 4340 ubanza, shyushya kugeza kuri 1150 ° C - 1200 ° C ntarengwa yo guhimba, komeza kugeza ubushyuhe buringaniye mugice cyose.

Ntugahimbye munsi ya 850 ° C. 4340 ifite ibimenyetso byiza byo guhimba ariko bigomba kwitonderwa mugihe ukonje nkuko ibyuma byerekana ko byoroshye gucika. Gukurikira ibikorwa byo guhimba igice cyakazi kigomba gukonjeshwa buhoro buhoro bishoboka. Kandi gukonjesha mumucanga cyangwa lime yumye birasabwa nibindi

6. AISI 4340 Kuvura Ubushyuhe bwo mu Cyuma

• Kuruhura

Kubyuma byabanjirije ibyuma bigabanya imbaraga bigerwaho no gushyushya ibyuma 4340 kugeza hagati ya 500 kugeza 550 ° C. Shyushya kugeza kuri 600 ° C - 650 ° C, komeza kugeza ubushyuhe bumeze mu gice cyose, shyira isaha 1 kuri 25 mm, hanyuma ukonje mumuyaga utuje.

• Annealing

Anneal yuzuye irashobora gukorwa kuri 844 ° C (1550 F) ikurikirwa no gukonjeshwa (itanura) ku gipimo kitarenze 10 ° C (50 F) kumasaha kugeza kuri 315 ° C (600 F). Kuva kuri 315 ° C 600 F irashobora gukonjeshwa.

• Ubushyuhe

AISI 4340 ibyuma bivanze bigomba kuba mubushuhe buvuwe cyangwa busanzwe hamwe nubushyuhe bwakorewe mbere yo gushyuha. Ubushyuhe bwo guterwa biterwa nurwego rwifuzwa. Urwego rwimbaraga muri 260 - 280 ksi yubushyuhe bwa 232 ° C (450 F). Kubwimbaraga muri 125 - 200 ksi yubushyuhe kuri 510 ° C (950 F). Kandi ntugahoshe ibyuma 4340 niba biri mumbaraga za 220 - 260 ksi kuko ubushyuhe bushobora kuvamo kwangirika kwingaruka zuru rwego rwimbaraga.

Ubushyuhe bugomba kwirindwa niba bishoboka murwego rwa 250 ° C - 450 ° C kubera ubukana.

• Umuriro cyangwa Gukomera

Nkuko byavuzwe haruguru, ibyuma cyangwa isahani yabanje gukomeretsa no gutondekanya ibyuma 4340 birashobora gukomeza gukomera bitewe nuburyo bwa flame cyangwa induction uburyo bwo gukomera bigatuma urubanza rukomera rurenga Rc 50. AISI 4340 ibice byibyuma bigomba gushyuha vuba bishoboka ubushyuhe bwa austenitis (830 ° C - 860 ° C) hamwe nuburebure bwibisabwa bikurikirwa no kuzimya amavuta cyangwa amazi ako kanya, bitewe nuburemere busabwa, ingano yakazi / imiterere nuburyo bwo kuzimya.

Nyuma yo kuzimya intoki zishyushye, ubushyuhe kuri 150 ° C - 200 ° C bizagabanya imihangayiko mugihe bigira ingaruka nke mubukomere bwayo.

Ibikoresho byose bya de-carburised bigomba kubanza gukurwaho kugirango habeho ibisubizo byiza.

• Nitriding

Ibyuma bikarishye kandi bikonjesha 4340 ibyuma bivanze nabyo birashobora kuba nitride, bigatanga ubukana bwubuso bugera kuri Rc 60. Shyushya kugeza kuri 500 ° C - 530 ° C kandi ufate umwanya uhagije (kuva kumasaha 10 kugeza 60) kugirango utezimbere ubujyakuzimu. Nitriding igomba gukurikirwa no gukonja buhoro (nta kuzimya) kugabanya ikibazo cyo kugoreka. Icyiciro cya nitride 4340 ibikoresho rero birashobora gukorerwa hafi yubunini bwa nyuma, hasigara amafaranga make yo gusya gusa. Imbaraga zingana zingirakamaro 4340 yibikoresho byibyuma mubisanzwe ntabwo bigira ingaruka kuberako ubushyuhe bwa nitriding buri munsi yubushyuhe bwambere bwakoreshejwe.

Ubuso bukomeye bushobora kugerwaho ni 600 kugeza 650HV.

7. Imashini

Imashini nibyiza gukorwa hamwe nicyuma kivanze 4340 muburyo bufatika cyangwa busanzwe kandi bwitondewe. Irashobora gutunganywa byoroshye nuburyo bwose busanzwe nko kubona, guhindukira, gucukura nibindi. Ariko mugihe imbaraga nyinshi zingana na 200 ksi cyangwa zirenga imashini irashobora kuva kuri 25% kugeza 10% gusa ya ya mavuta muburyo bwa anneed.

8. Gusudira

Gusudira ibyuma 4340 muburyo bukomeye kandi bushyushye (nkuko bisanzwe bitangwa), ntibisabwa kandi bigomba kwirindwa niba bishoboka, kubera akaga ko gucika, kuko imiterere yubukanishi izahindurwa muri zone yibasiwe nubushyuhe.

Niba gusudira bigomba gukorwa, mbere yubushyuhe kugeza 200 kugeza 300 ° C hanyuma ukomeze ibi mugihe cyo gusudira. Ako kanya nyuma yo gusudira guhangayikisha 550 kugeza 650 ° C, mbere yo gukomera no gushyuha.

Niba gusudira mubihe bikomeye kandi bikonje birakenewe rwose, noneho igice cyakazi, ako kanya ukonje kugirango ushushe intoki, bigomba kuba niba bishoboka guhangayika kugabanuka kuri 15 ° C munsi yubushyuhe bwambere.

9. Gukoresha ibyuma 4340

AISI 4340 ibyuma bikoreshwa mubice byinshi byinganda kubisabwa bisaba kurenza urugero / gutanga umusaruro urenze 4140 ibyuma bishobora gutanga.

Bimwe mubisanzwe bisanzwe nka:

• Ibikoresho byo kugwa mu ndege
• Imodoka,
• Gucukura peteroli na gaze,
• Guhimba,
• Ubushyuhe n'ubukonje,
• Kubaka Imashini,
• Kwimura sisitemu, nkibikoresho byohereza amashanyarazi na shafts.
• Inganda rusange zubwubatsi hamwe nuburyo bukoreshwa muburyo bukoreshwa, nka: imitwaro iremereye, ibikoresho, imitambiko, spindles, guhuza, pin, chucks, mold nibindi.

Gnee Steel nimwe mubitanga isoko rya AISI 4340 ibyuma byawe bitandukanye nkuko byavuzwe haruguru. Kandi dutanga ibyuma 4140, ibyuma 4130 nabyo. Menyesha kandi umenyeshe ibyifuzo byawe igihe icyo aricyo cyose.