Umgangatho olungileyo we-AISI 4130 4140 25crmo4 Nbk 30CrMo 35CrMo 42CrMo Umbhobho wentsimbi ongenamthungo
Inkcazelo emfutshane:
Umbhobho we-alloy we-42CrMo ongenamthungo yintsimbi eyomelela kakhulu ephezulu kunye nokuqina okuphezulu, ukuqina okuhle, akukho brittleness ecacileyo, kunye nokuguqulwa okuncinci ngexesha lokucima.Emva kokucima kunye nokufudumeza, umbhobho we-alloy we-42CrMo ongenamthungo unomda wokudinwa okuphezulu kunye nokumelana neempembelelo ezininzi, ukuqina kwempembelelo elungileyo kwiqondo lobushushu eliphantsi, kunye namandla aphezulu okurhubuluza kunye namandla okunyamezela kwiqondo lobushushu eliphezulu.Ukucima umphezulu emva kokucinywa kunye nokufudumeza ngokuqhelekileyo kusetyenziswa njengeskimu sonyango lobushushu kwimibhobho yealloy engenamthungo ye-42CrMo.
Iqumrhu lixhasa ifilosofi ethi "Yiba nguNombolo 1 ngokugqwesileyo, usekelwe kumlinganiselo wetyala kunye nokuthembeka ekukhuleni", iya kuqhubeka nokubonelela abathengi abadala kunye nabatsha abavela ekhaya nakwamanye amazwe ngokufudumeleyo ngoMgangatho oLungileyo we-AISI 4130 4140 25crmo4 Nbk 30CrMo 35CrMo 42CrMo Umbhobho wentsimbi ongenamthungo, Thina, ngeengalo ezivulekileyo, simema bonke abantu abanokuba ngabathengi abanomdla ukuba bandwendwele iphepha lethu lewebhu okanye baqhagamshelane nathi ngokukodwa ngolwazi olongezelelweyo.
Iqumrhu liyayixhasa ifilosofi ethi “Yiba nguNombolo 1 ngokugqwesileyo, usekelwe kumlinganiselo wetyala kunye nokuthembeka ekukhuleni”, iya kuqhubeka nokubonelela abathengi abasele bekhulile nabatsha abasuka ekhaya nakumazwe ngamazwe ngokufudumeleyoI-China 4130 i-Seamless Steel Pipe kunye ne-30CrMo iPipe engenamthungo, Kwiminyaka emininzi yamava omsebenzi, siye sakuqonda ukubaluleka kokubonelela ngeemveliso ezisemgangathweni kunye nezisombululo kunye neenkonzo ezingcono zangaphambi kokuthengisa kunye nezasemva kokuthengisa.Uninzi lweengxaki phakathi kwabaxhasi kunye nabathengi kungenxa yonxibelelwano olubi.Ngokwenkcubeko, ababoneleli banokuthandabuza ukubuza izinto abangaziqondiyo.Siyidiliza yonke loo miqobo ukuze siqinisekise ukuba ufumana into oyifunayo kwinqanaba olilindeleyo, xa uyifuna.ixesha lokuhambisa ngokukhawuleza kunye nemveliso oyifunayo yiCriterion yethu.
Ayinayo i-brittleness ecacileyo yomsindo, i-deformation encinci ngexesha lokucima, umda wokudinwa okuphezulu kunye nokuchasana kweempembelelo ezininzi emva kokucima kunye nonyango olushushu.Umbhobho we-alloy we-42CrMo ongenamthungo unefuthe elihle lokuqina kwiqondo lobushushu eliphantsi kunye namandla anyukayo aphezulu kunye namandla okunyamezela kwiqondo lobushushu eliphezulu.Ukucima umphezulu emva kokucinywa kunye nokufudumeza ngokuqhelekileyo kusetyenziswa njengeskimu sonyango lobushushu kwimibhobho yealloy engenamthungo ye-42CrMo.
Ingxubevange yentsimbi ekhethekileyo:41Cr4,25CrMo4,30CrMo4,34CrMo4,42CrMo4
OD: 20-660mm WT: 2.3-100mm L: 5.8M, 6M, 11.8M, 12M okanye nabuphi na ubude obuchaziweyo.
Isicelo: Umatshini, ubunjineli ngokubanzi, ingalo yecrane, amahlathi, ii-Cylinders ezahlukeneyo, ii-Conveyor Rolls, i-Hollow Shafts, i-Hollow Parts kunye nezixhobo, iiNti, iiringi, njl.
Ukusetyenziswa kwepayipi ye-alloy ye-42CrMo engenamthungo: insimbi ekhethekileyo esetyenziselwa iibhulorho "42CrMo", intsimbi ekhethekileyo yeegidi zemoto "42CrMo", kunye nentsimbi ekhethekileyo kwiinqanawa zoxinzelelo "42CrMo".Olu hlobo lwensimbi luphucula iimpawu zemishini yensimbi ngokulungelelanisa umxholo wekhabhoni (c).Ngoko ke, ngokubhekiselele kumxholo wekhabhoni, olu hlobo lwensimbi lunokwahlulwa lube: intsimbi ephantsi yekhabhoni - umxholo wekhabhoni ngokuqhelekileyo ungaphantsi kwe-0.25%, njenge-10 kunye ne-20 yensimbi;Insimbi ye-carbon ephakathi - umxholo wekhabhoni uphakathi kwe-0.25 kunye ne-0.60%, njenge-35 kunye ne-45 yensimbi;Intsimbi yekhabhoni ephezulu - umxholo wekhabhoni ungaphezulu kwe-0.60%.Olu hlobo lwentsimbi alusetyenziswanga ukwenza imibhobho yentsimbi.
Usetyenziso oluqhelekileyo
Ifanelekile ukwenza iimbumba zeplastiki ezinkulu kunye neziphakathi ezifuna amandla athile kunye nokuqina.
| Ibakala lentsimbi | C | Si | Mn | P | S | Cr | Mo | Ni | ||||||
| Igama lentsimbi | Inombolo yentsimbi | imiz. | max. | max. | imiz. | max. | max. | max. | imiz. | max. | imiz. | max. | imiz. | max. |
| 41Cr4 | 1.7035 | 0,38 | 0,45 | 0,40 | 0,60 | 0,90 | 0,035 | 0,035 | 0,90 | 1,20 | - | - | - | - |
| 25CrMo4 | 1.7218 | 0,22 | 0,29 | 0,40 | 0,60 | 0,90 | 0,035 | 0,035 | 0,90 | 1,20 | 0,15 | 0,30 | - | - |
| 30CrMo4 | 1.7216 | 0,27 | 0,34 | 0,35 | 0,35 | 0,60 | 0,035 | 0,035 | 0,80 | 1,15 | 0,15 | 0,30 | - | - |
| 34CrMo4 | 1.7220 | 0,30 | 0,37 | 0,40 | 0,60 | 0,90 | 0,035 | 0,035 | 0,90 | 1,20 | 0,15 | 0,30 | - | - |
| 42CrMo4 | 1.7225 | 0,38 | 0,45 | 0,40 | 0,60 | 0,90 | 0,035 | 0,035 | 0,90 | 1,20 | 0,15 | 0,30 | - | - |
| a Bona kwakhona 7.1. | ||||||||||||||
| b<0,25% Cu. | ||||||||||||||
| Ibakala lentsimbi | Ubuncinci beempawu zokuxinana | ||||||||||||||||
| Igama lentsimbi | Inombolo yentsimbi | Amandla esivuno (ReH) MPa | Amandla okuqina (Rm) MPa | Elongation A% | |||||||||||||
| Ku-T kwi-mm | Ku-T kwi-mm | Ku-T kwi-mm | |||||||||||||||
| T≤8 | 8＜T≤20 | 20＜T≤50 | 50＜T≤80 | T≤8 | 8＜T≤20 | 20＜T≤50 | 50＜T≤80 | T≤8 | 8＜T≤20 | 20＜T≤50 | 50＜T≤80 | ||||||
| l | t | l | t | l | t | l | t | ||||||||||
| 41Cr4 | 1.7035 | 800 | 660 | 560 | - | 1000 | 900 | 800 | - | 11 | 9 | 12 | 10 | 14 | 12 | - | - |
| 25CrMo4 | 1.7218 | 700 | 600 | 450 | 400 | 900 | 800 | 700 | 650 | 12 | 10 | 14 | 12 | 15 | 13 | 16 | 14 |
| 30CrMo4 | 1.7216 | 750 | 630 | 520 | 480 | 950 | 850 | 750 | 700 | 12 | 10 | 13 | 11 | 14 | 12 | 15 | 13 |
| 34CrMo4 | 1.7220 | 800 | 650 | 550 | 500 | 1000 | 900 | 800 | 750 | 11 | 9 | 12 | 10 | 14 | 12 | 15 | 13 |
| 42CrMo4 | 1.7225 | 900 | 750 | 650 | 550 | 1100 | 1000 | 900 | 800 | 10 | 8 | 11 | 9 | 12 | 10 | 13 | 11 |
| QAPHELA l = i-longitudinal, t = transverse. | |||||||||||||||||
Ukunyamezela Ubude:
Xa Ubude bulingana ne-6000mm, Ukunyamezela 0/+10
Xa 6 000 < L = 12 000, Ukunyamezela 0/+15
Xa > 12 000,Ukunyamezela 0/+ ngesivumelwano
Ukucaciswa kwenkqubo kunye neempawu ezibonakalayo ze-42CrMo zentsimbi yombhobho
I-42CrMo ipayipi yensimbi, umxholo wekhabhoni: 0.38 ～ 0.45%, i-silicon: 0.17 ～ 0.37%, i-manganese: 0.50 ～ 0.80%.
I-42CrMo yentsimbi yombhobho yentsimbi eyomelele kakhulu, inamandla aphezulu kunye nokuqina, ukuqina okuhle, akukho brittleness ecacileyo yokudinwa, umda wokudinwa okuphezulu kunye nokumelana neempembelelo ezininzi emva kokucima kunye nonyango olushushu, kunye nokuqina okuhle kobushushu obuphantsi.
Intsimbi ifanelekile ukuvelisa iimbumba zeplastiki ezinkulu kunye neziphakathi ezifuna amandla athile kunye nokuqina.I-brand yayo ehambelana nemigangatho yezizwe ngezizwe: i-42CrMo4 ihambelana ne-brand yaseJapan: i-scm440 ihambelana ne-brand yaseJamani: i-42CrMo4 ihambelana malunga ne-brand yaseMelika: iimpawu ze-4140 kunye nobubanzi besicelo: amandla aphezulu, ukuqina, ukuqina okulungileyo, ukuguqulwa okuncinci ngexesha lokucima, amandla aphezulu kunye amandla okunyamezela kwiqondo lokushisa eliphezulu.Isetyenziselwa ukwenza iifogi ezinamandla aphezulu kunye nokucinywa okukhulu kunye nokutshisa okunqamlezayo kune-35CrMo yentsimbi, efana negiya enkulu ye-locomotive traction, igiya yokuhambisa ye-supercharger, i-axle yangasemva, intonga yokudibanisa kunye ne-spring clamp enomthwalo omkhulu, i-drill pipe edibeneyo kunye isixhobo sokuloba i-oyile nzulu kakuhle ngaphantsi kwe-2000m, kunye nokungunda kumatshini ukugoba.
I-Sulfur s: umxholo oshiyekileyo ovumelekileyo ≤ 0.035%
I-Phosphorus P: umxholo ovumelekileyo wentsalela ≤ 0.035%
I-Chromium (CR): 0.90 ～ 1.20%
I-Nickel Ni: umxholo ovumelekileyo oshiyekileyo ≤ 0.030%
I-Copper Cu: umxholo oshiyekileyo ovumelekileyo ≤ 0.030%
I-Molybdenum (MO): 0.15 ～ 0.25%
Uxinzelelo oluvumelekileyo lwe-42CrMo
I-42CrMo uxinzelelo oluvumelekileyo 186 ～ 310 / MPa, inqaku lesivuno 930 σ S / MPa, 42CrMo inamandla amakhulu, ukuqina, ukuqina okulungileyo, ukuguqulwa okuncinci ngexesha lokucima, kunye namandla aphezulu okukhasa kunye namandla okunyamezela kwiqondo lokushisa eliphezulu.Umbhobho wensimbi we-42CrMo usetyenziselwa ukuvelisa i-forgings enamandla aphezulu kunye necandelo elikhulu elicinyiweyo kunye nelobushushu kune-35CrMo yentsimbi.
I-1) Iqondo lokushisa elibalulekileyo (malunga): AC1 = 730 ° C, AC3 = 800 ° C, Ms = 310 ° C.
2) I-coefficient yokwandisa i-Linear: iqondo lokushisa 20 ~ 100 ° C / 20 ~ 200 ° C / 20 ~ 300 ° C / 20 ~ 400 ° C / 20 ~ 500 ° C / 20 ~ 600 ° C, i-coefficient yokwandisa i-linear: 11.1 × 1 × 1 /12.1 × 10K/12.9 × 10K/13.5 × 10K/13.9 × 10K14.1 × 10K.
3) Imodyuli ye-elastic: ubushushu 20 ° C / 300 ° C / 400 ° C / 500 ° C / 600 ° C, imodyuli elastiki 210000mpa / 185000mpa / 175000mpa / 165000mpa / 15500mpa
Inkcazo yokusebenza eshushu
Ubushushu bokufudumala yi-1150 ~ 1200 ° C, iqondo lokuqala liyi-1130 ~ 1180 ° C, kwaye iqondo lokushisa eliphela ngu> 850 ° C, φ> 50mm, ukupholisa okucothayo.
Ukucaciswa kwesiqhelo
Ubushushu obuqhelekileyo bungama-850 ~ 900 ° C, kwaye isithando somlilo sipholile ngomoya.
Inkcazo yobushushu obuphezulu bobushushu
Ubushushu bobushushu bungama-680 ~ 700 ° C, kwaye iziko lipholiswa ngumoya.
Iimpawu zokunciphisa kunye nokunciphisa umzimba
Ukushisa kwe-preheating 680 ~ 700 ° C, ukucima ukushisa kwe-840 ~ 880 ° C, ukupholisa ioli, ukushisa kwe-580 ° C, ukupholisa kwamanzi okanye ukupholisa ioli, ubulukhuni ≤ 217hbw.
Inkcazo yokomelezwa kwe-subcritical kunye nokuqina
Ukucima iqondo lobushushu 900 ° C, iqondo lobushushu 560 ° C, ukuqina (37 ± 1) HRC
Inkcazo yokucinywa kwe-induction kunye nokuthoba
Ukucima ubushushu 900 ° C, iqondo lokushisa 150 ~ 180 ° C, ubulukhuni 54 ~ 60HRC.
Inkcazo yokusebenza eshushu
Ubushushu bokufudumala yi-1150 ~ 1200 ° C, iqondo lokuqala liyi-1130 ~ 1180 ° C, kwaye iqondo lokushisa eliphela ngu> 850 ° C, φ> 50mm, ukupholisa okucothayo.
Ukucaciswa kwesiqhelo
Ubushushu obuqhelekileyo bungama-850 ~ 900 ° C, kwaye isithando somlilo sipholile ngomoya.
Inkcazo yobushushu obuphezulu bobushushu
Ubushushu bobushushu bungama-680 ~ 700 ° C, kwaye iziko lipholiswa ngumoya.
Iimpawu zokunciphisa kunye nokunciphisa umzimba
Ukushisa kwe-preheating 680 ~ 700 ° C, ukucima ukushisa kwe-840 ~ 880 ° C, ukupholisa ioli, ukushisa kwe-580 ° C, ukupholisa kwamanzi okanye ukupholisa ioli, ubulukhuni ≤ 217hbw.
Inkcazo yokomelezwa kwe-subcritical kunye nokuqina
Ukucima iqondo lobushushu 900 ° C, iqondo lobushushu 560 ° C, ukuqina (37 ± 1) HRC
Inkcazo yokucinywa kwe-induction kunye nokuthoba
Ukucima iqondo lobushushu 900 ° C, iqondo lobushushu 150 ~ 180 ° C, ubulukhuni 54 ~ 60HRC. Iqumrhu lixhasa ifilosofi "Yiba No.1 ngokugqwesileyo, isekelwe kumlinganiselo wetyala kunye nokuthembeka ekukhuleni", iya kuqhubeka nokubonelela abadala kunye abathengi abatsha abasuka ekhaya nakwamanye amazwe ngokushushubezekileyo ngo-2019 uMgangatho oLungileyo we-AISI 4130 4140 25crmo4 Nbk 30CrMo 35CrMo 42CrMo Umbhobho wentsimbi ongenamthungo, Thina, ngeengalo ezivulekileyo, simema bonke abathengi abanomdla ukuba bandwendwele iphepha lethu lewebhu okanye baqhagamshelane nathi ngokuthe ngqo. Iinkcukacha ezongezelelwe.
2019 Umgangatho olungileyoI-China 4130 i-Seamless Steel Pipe kunye ne-30CrMo iPipe engenamthungo, Kwiminyaka emininzi yamava omsebenzi, siye sakuqonda ukubaluleka kokubonelela ngeemveliso ezisemgangathweni kunye nezisombululo kunye neenkonzo ezingcono zangaphambi kokuthengisa kunye nezasemva kokuthengisa.Uninzi lweengxaki phakathi kwabaxhasi kunye nabathengi kungenxa yonxibelelwano olubi.Ngokwenkcubeko, ababoneleli banokuthandabuza ukubuza izinto abangaziqondiyo.Siyidiliza yonke loo miqobo ukuze siqinisekise ukuba ufumana into oyifunayo kwinqanaba olilindeleyo, xa uyifuna.ixesha lokuhambisa ngokukhawuleza kunye nemveliso oyifunayo yiCriterion yethu.
