Lintlha tsa tekheniki
Karolo ea Lik'hemik'hale ea NM400
| Element |
|
C |
Si |
Mong |
P |
S |
Kr |
Mo |
Ni |
B |
CEV |
| Kereiti |
NM400 |
≤0.25 |
≤0.70 |
≤1.60 |
≤0.025 |
≤0.010 |
≤1.4 |
≤0.50 |
≤1.00 |
≤0.004 |
|
Thepa ea Mechini ea NM400
| Kereiti ea tšepe |
Y.S (MPa) |
T.S (MPa) |
Elongation A5(%) |
Teko ea Tšusumetso |
Ho thatafala |
| min |
min |
min |
(°C) |
AKV J(mots) |
HBW |
| NM360 |
800 |
1000 |
10 |
-20 |
30 |
320-400 |
| NM400 |
1000 |
1250 |
10 |
-20 |
30 |
360-440 |
| NM450 |
1250 |
1500 |
10 |
-20 |
30 |
410-490 |
| NM500 |
1300 |
1700 |
10 |
-20 |
30 |
450-540 |
Litekanyetso tse lekantsoeng tsa thepa ea tšepe ea tšepe ea tšepe Rp0.2, Rm le A50 li fanoe.
Litekanyetso tse lekantsoeng (AKV) tsa phello ea longitudinal ea tšepe ea tšepe ka 0 ° C le -20 ° C li fanoa.
Thata e arotsoe ka: Rockwell hardness, Brinell hardness, Vickers hardness, Richwell hardness, Shore hardness, Barinell hardness, Nooul hardness, Weinwell hardness. Vickers hardness e hlalosoa ke HV, Rockwell hardness e ka aroloa ka HRA, HRB, HRC, HRD, Brinell hardness e hlahisoa ke Hb [N(KGF /mm2)] (HBSHBW) (sheba GB/T231-1984 ). Ha se mohopolo o bonolo oa 'mele ho lekanya ho thatafala ha likarolo tsa tšepe ka mor'a hore annealing, normalizing le tempering ka mokhoa oa ho thatafala oa Brinell tlhahiso.
Ke lethathamo le felletseng la thepa ea mochini joalo ka elasticity, polasetiki, matla le ho tiea ha thepa. Teko ea boima ho latela mekhoa e fapaneng ea liteko e ka aroloa ka mokhoa o tsitsitseng oa khatello (joalo ka Brinell hardness, Rockwell hardness, Vickers hardness, joalo-joalo), mokhoa oa ho hlaka (joalo ka Mohr hardness), mokhoa oa ho phunya (joalo ka ho thata ha Shore) le micro. boima, boima ba mocheso o phahameng le mekhoa e meng.
Teko ea Mehlala ea NM400
| Taelo |
|
Nomoro ea Mohlala |
Mokhoa oa ho etsa mohlala |
Mokhoa oa Teko |
| 1 |
Otlolla |
1 |
GB/T2975-82 |
GB228/T-2002 |
| 2 |
Ho tshoha
|
3 |
GB/T2975-82 |
GB/T229-1994 |
| 3 |
Ho thatafala |
1 |
GB/T2975-82 |
GB231-84 |
Teko ea boima: leloa ka 1.0-2.5mm holim'a poleiti ea tšepe, ebe u etsa teko ea boima holim'a metsi. Ka kakaretso ho kgothaletswa hore o tlose 2.0mm bakeng sa teko ea boima.
Ntlafatso ea NM400
- mokhoa oa ho itšeha ka tšepe o loketse ho itšeha ho batang le ho itšeha ho chesang. Ho itšeha ho batang ho kenyelletsa ho itšeha ka jete ea metsi, ho itšeha, ho sakha kapa ho itšeha ka mokhoa o senyang; .
- mokhoa oa ho itšeha: ka tlhahlobo e nepahetseng ea ts'ebetso, tseba litšobotsi tse akaretsang tsa mekhoa e fapaneng ea ho itšeha ea poleiti ea tšepe le mefuta e mengata ea botenya.
- mokhoa oa ho seha lelakabe oa tšepe e manganga ea maemo a holimo le k'habone e tloaelehileng e tlase le tšepe ea alloy e tlase e le bonolo, ka poleiti ea tšepe e sa sebetseng, e hloka ho ela hloko !!Ka keketseho ea botenya le boima ba tšepe poleiti, tšekamelo ea ho petsoha ea ho itšeha ea eketseha.E le ho thibela moloko oa ho khaola mapetsong a tšepe ea tšepe, litlhahiso tse latelang li lokela ho lateloa ha u khaola:
Cutting crack: steel plate cutting cracking e tshwana le crack e entsweng ke hydrogen nakong ya ho tjheseletsa. Haeba ho phatloha ha tšepe ea tšepe ho etsahala, e tla hlaha ka mor'a lihora tse 48 ho isa libeke tse 'maloa ka mor'a ho khaola.Ka lebaka leo, lekhalo la ho itšeha ke la ho phatloha ho liehang, botenya le ho thatafala ha tšepe ea tšepe e kholoanyane, ho feta moo ho phatloha ho hoholo.
Preheat cutting: tsela e atlehang ka ho fetisisa ea ho thibela ho phatloha ha tšepe ea tšepe ke ho futhumatsa pele ho seha.Pele ho seha lelakabe, tšepe ea tšepe e atisa ho futhumatsoa, 'me mocheso oa eona oa ho futhumatsa o itšetlehile haholo ka boemo ba boleng le botenya ba poleiti ea tšepe, joalokaha ho bontšitsoe ho Letlapa la 2.Mokhoa oa ho futhumatsa o ka ba sethunya sa mollo, mocheso oa motlakase oa elektronike bakeng sa ho futhumatsa, o ka boela oa sebelisa mocheso oa sebōpi se futhumatsang.E le hore u tsebe hore na ho na le phello ea preheating ea tšepe ea tšepe, mocheso o hlokahalang o lokela ho lekoa sebakeng se eketsang se chesang.
Ela hloko: preheating tlhokomelo e khethehileng, ho etsa poleiti segokanyimmediamentsi sa sebolokigolo ka tsela e tšoanang halefile, e le hore u se ke ua ikopanya le mohloli oa mocheso sebakeng sa ketsahalo overheating sebakeng seo.
Ho itšeha ka lebelo le tlase: Tsela e 'ngoe ea ho qoba ho khaola mapetsong ke ho fokotsa lebelo la ho itšeha.Haeba u sa khone ho chesa poleiti eohle, u ka sebelisa mokhoa oa ho futhumatsa sebakeng sa heno ho e-na le ho sebelisa mokhoa o fokolang oa ho itšeha ho thibela ho khaola crack, ho tšepahala ha eona ha ho molemo joaloka preheating.Re fana ka maikutlo a ho futhumatsa lebanta la ho itšeha ka flame gun cavitation ka makhetlo a mangata pele u khaola, 'me mocheso oa preheating o loketse ho fihla hoo e ka bang 100 ° C. Lebelo le phahameng la ho itšeha le itšetlehile ka sekhahla sa tšepe ea tšepe le botenya.
Tlhokomeliso e khethehileng: motsoako oa preheating le tlaase lebelo lelakabe itšeha mekhoa ka ka ho eketsehileng fokotsa ketsahalo kgonego ya ho seha mapetsong.
Litlhoko tsa ho pholile butle ka mor'a ho itšeha: ebang seha ha se chesoe pele kapa che, ho phomola butle ha poleiti ea tšepe ka mor'a ho khaola ho tla fokotsa ka katleho kotsi ea ho khaola crack. kobo, le ho pholisa butle ho ka phethahala. Ho pholile butle ho hloka hore ho pholisoe mocheso oa kamore.
Litlhoko tsa ho futhumatsa ka mor'a ho itšeha: bakeng sa ho itšeha ha poleiti ea tšepe e sa sebetseng, ho futhumatsa (mocheso o fokolang oa mocheso) o nkoa hang ka mor'a ho itšeha, e leng mokhoa o atlehang le ho lekanya ho thibela ho itšeha mapetsong. , e ka felisa khatello ea kelello ka katleho (mocheso o tlaase oa mocheso; Nako ea ho nosetsa: 5min/mm)
Bakeng sa mokhoa oa ho futhumatsa ka mor'a ho itšeha, ho chesa sethunya, kobo ea ho futhumatsa ea elektronike le sebōpi sa ho siama le tsona li sebelisetsoa ho futhumatsa ka mor'a ho khaola.
Lintho tse khahlanong le ho nolofatsa ha tšepe tsa tšepe haholo-holo li itšetlehile ka metsoako ea eona ea lik'hemik'hale, microstructure le mokhoa oa ho sebetsa.Bakeng sa likarolo tse khaotsoeng ka mocheso, karolo e nyenyane, ho na le kotsi e kholo ea ho nolofatsa karolo eohle.Haeba mocheso oa tšepe o feta 200-250 °C, ho thatafala ha tšepe ea tšepe ho tla fokotseha.
Mokhoa oa ho itšeha: ha poleiti ea tšepe e khaola likarolo tse nyenyane, mocheso o fanoang ke toche ea welding le preheating e tla bokana ka har'a workpiece. E nyenyane ea boholo ba ho itšeha, boholo ba mosebetsi oa ho itšeha ha oa lokela ho ba ka tlase ho 200mm, ho seng joalo workpiece e tla. ho ba le kotsi ea ho nolofatsa.Tsela e molemohali ea ho felisa kotsi ea ho nolofatsa ke ho itšeha ho batang, joalo ka ho itšeha ka jete ea metsi.Haeba ho lokela ho sebelisoa ho itšeha ka mocheso, plasma kapa laser cutting ke khetho e lekanyelitsoeng.Sena ke hobane ho khaola lelakabe ho fana ka mocheso o mongata ho. workpiece, kahoo ho phahamisa mocheso oa workpiece.
Mokhoa oa ho itšeha ka tlas'a metsi: mokhoa o atlehang oa ho fokotsa le ho fokotsa boholo ba sebaka sa ho nolofatsa, ho sebelisa metsi ho ea lehong la lenga la tšepe le holim'a ho itšeha nakong ea ho itšeha. ka ho fafatsa metsi sebakeng sa ho itšeha.Plasma kapa ho khaola lelakabe ke khetho bakeng sa ho itšeha ka tlas'a metsi.Ho itšeha ka tlas'a metsi ho na le litšobotsi tse latelang:
- Sebaka se senyenyane sa mocheso se amehileng sa ho itšeha;
- Thibela ho thatafala ha workpiece ho fokotseha;
- Fokotsa deformation ea seha workpiece;
- Workpiece e ka pholile ka ho toba ka mor'a ho itšeha.
Lethathamo la Papiso ea Kereiti
Lethathamo la papiso lipakeng tsa poleiti ea tšepe ea NM400 le tšepe e tsoang kantle ho naha
| WYJ/WJX |
JFE |
SSAB |
DILLIDUR |
SUMIHARD |
| WNM400 |
JFE-EH400 |
HARDOX400 |
400V |
K400 |
Tafole ea papiso ea mofuta oa thepa ea lapeng ea NM400
| WYJ/WJX |
WISCO |
THABILE |
Q/XGJ |
JX62 |
| WNM400 |
NM400 |
HARDOX400 |
NM400 |
NM400 |
Tebello ea Kopo
Ho sebelisoa lithane tse fetang 5000 tsa lipoleiti tsa tšepe tsa NM400 bakeng sa ho epolla, mochini oa ho jara, bulldozer bakete poleiti, blade plate, side blade plate, blade plate, crusher liner plate le merero ea kaho ea lehare mochining oa boenjiniere, mechini ea merafo, mechini ea merafo ea mashala, mochini o sireletsang tikoloho. , mechine ea metallurgical le likhoebo tse ling tsa tlhahiso.
