Ncej qhov chaw yog ib qho ntawm cov khoom feem ntau ntsib hauv cov tshuab.Nws yog tsuas yog siv los txhawb kev sib kis xoom

Cheebtsam, kis torque thiab dais load.Ncej qhov chaw yog rotating qhov chaw uas nws qhov ntev yog ntau dua li txoj kab uas hla, thiab feem ntau yog tsim los ntawm sab nrauv cylindrical nto, conical nto, puab lub qhov thiab xov ntawm lub concentric ncej thiab cov khoom kawg nto.Raws li cov qauv sib txawv, cov ncej ncej tuaj yeem muab faib ua optical shafts, stepped shafts, hollow shafts thiab crankshafts.

Cov ncej nrog qhov ntev-rau-ntev qhov sib piv tsawg dua 5 yog hu ua luv shafts, thiab cov uas muaj qhov sib piv ntau dua 20 yog hu ua slender shafts.Feem ntau cov shafts nyob nruab nrab ntawm ob.

Cov ncej yog txhawb nqa los ntawm cov kabmob, thiab cov ncej txuas nrog cov kabmob yog hu ua phau ntawv sau.Axle journals yog cov khoom sib dhos ntawm cov ncej.Lawv qhov tseeb thiab qhov zoo ntawm qhov chaw feem ntau yuav tsum tau siab.Lawv cov kev cai lij choj feem ntau yog tsim raws li lub luag haujlwm tseem ceeb thiab kev ua haujlwm ntawm cov ncej, feem ntau yog cov khoom hauv qab no:

(1) Dimensional raug.Txhawm rau txiav txim siab txoj haujlwm ntawm tus ncej, cov ntawv xov xwm kabmob feem ntau yuav tsum muaj qhov raug siab (IT5 ~ IT7).Feem ntau, qhov tseeb qhov tseeb ntawm cov ntawv xov xwm ncej rau kev sib txuas cov khoom sib txuas yog qhov tsawg (IT6 ~ IT9).

(2) Geometric shape accuracy Lub geometric shape precision ntawm ncej qhov feem ntau yog hais txog lub roundness, cylindricity, thiab lwm yam. ntawm phau ntawv journal, txheej cone, Morse taper qhov, thiab lwm yam.Rau sab hauv thiab sab nraud puag ncig nrog cov kev xav tau siab dua, qhov tso cai sib txawv yuav tsum tau cim rau ntawm daim duab.

(3) Kev sib nrig sib raug zoo Txoj hauj lwm qhov yuav tsum tau muaj ntawm cov ncej yog tsuas yog txiav txim siab los ntawm txoj hauj lwm thiab kev ua haujlwm ntawm cov ncej hauv lub tshuab.Feem ntau, nws yog ib qho tsim nyog los xyuas kom meej cov coaxiality uas yuav tsum tau ntawm cov ncej ncej ntawm cov khoom sib txuas mus rau cov ntawv xov xwm txhawb nqa, txwv tsis pub nws yuav cuam tshuam rau qhov tseeb ntawm qhov kis tau tus mob (cov iav, thiab lwm yam) thiab tsim suab nrov.Rau qhov zoo tib yam precision shafts, lub radial runout ntawm qhov sib txuam ncej seem rau cov ntaub ntawv txhawb nqa yog feem ntau 0.01 ~ 0.03mm, thiab siab precision shafts (xws li lub ntsiab ncej) feem ntau yog 0.001 ~ 0.005mm.

(4) Nto roughness Feem ntau, qhov saum npoo roughness ntawm lub taub hau sib npaug nrog qhov sib kis yog Ra2.5 ~ 0.63μm, thiab qhov roughness ntawm qhov kev txhawb nqa txoj kab uas hla sib phim nrog cov kabmob yog Ra0.63 ~ 0.16μm.

Cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm
(1) Cov khoom seem ntawm cov ncej ncej tuaj yeem xaiv tau raws li qhov tsis muaj, forgings thiab lwm yam ntaub ntawv dawb paug raws li kev siv, hom ntau lawm, cov khoom siv thiab cov qauv.Rau shafts nrog me ntsis txawv nyob rau hauv lub cheeb txoj kab uas hla, bar cov ntaub ntawv feem ntau yog siv;rau cov kauj ruam los yog cov ncej tseem ceeb nrog cov kab loj loj, forgings feem ntau yog siv, uas txuag cov ntaub ntawv thiab txo cov haujlwm ntawm machining.Txhim kho cov khoom siv kho tshuab.

Raws li qhov sib txawv ntau lawm, muaj ob hom kev forging dawb paug: dawb forging thiab tuag forging.Dawb forging feem ntau yog siv rau me me thiab nruab nrab batch ntau lawm, thiab tuag forging yog siv rau ntau lawm.

(2) Cov khoom siv ntawm cov ncej ncej yuav tsum xaiv cov khoom sib txawv thiab txais cov kev kho cua sov sib txawv (xws li quenching thiab tempering, normalizing, quenching, thiab lwm yam) raws li kev ua haujlwm sib txawv thiab kev siv cov kev cai kom tau txais qee lub zog, toughness thiab Abrasion tsis kam. .

45 steel yog ib qho khoom siv rau cov ncej ncej.Nws yog pheej yig thiab tom qab quenching thiab tempering (lossis normalizing), nws tuaj yeem tau txais kev ua haujlwm zoo dua, thiab nws tuaj yeem tau txais cov khoom siv zoo xws li lub zog siab dua thiab tawv.Tom qab quenching, qhov tawv tawv tuaj yeem ncav cuag 45 ~ 52HRC.

Alloy structural steel xws li 40Cr yog haum rau ncej qhov chaw nrog nruab nrab precision thiab siab ceev.Tom qab quenching thiab tempering thiab quenching, cov hlau zoo li no muaj cov khoom siv zoo dua qub.

Cov kabmob steel GCr15 thiab lub caij nplooj ntoos hlav steel 65Mn, tom qab quenching thiab tempering thiab nto high-frequency quenching, lub hardness nto tuaj yeem ncav cuag 50-58HRC, thiab muaj kev qaug zog thiab hnav tsis kam, uas tuaj yeem siv los tsim cov shafts siab.

Lub ntsiab ncej ntawm lub precision tshuab cuab tam (xws li lub sib tsoo log ncej ntawm lub grinder, spindle ntawm lub jig tho txawv tshuab) tuaj yeem xaiv 38CrMoAIA nitride steel.Tom qab quenching thiab tempering thiab nto nitriding, cov hlau no tuaj yeem tsis tsuas yog tau txais qhov siab ntawm qhov tawv, tab sis kuj muaj cov tub ntxhais mos mos, yog li nws muaj kev cuam tshuam zoo thiab toughness.Piv nrog cov carburized thiab hardened steel, nws muaj cov yam ntxwv ntawm kev kho cua sov me me deformation thiab hardness dua.

No. 45 steel yog dav siv nyob rau hauv machinery manufacturing, thiab mechanical zog ntawm cov hlau no zoo heev.Tab sis qhov no yog nruab nrab carbon steel, thiab nws cov quenching kev ua tau zoo tsis zoo.No. 45 steel tuaj yeem quenched rau HRC42 ~ 46.Yog li ntawd, yog hais tias lub saum npoo hardness yuav tsum tau thiab lub superior mechanical zog ntawm 45 # steel yog xav tau, qhov saum npoo ntawm 45 # steel yog feem ntau quenched (high-frequency quenching los yog ncaj quenching), thiaj li hais tias qhov yuav tsum tau deg hardness yuav tau.

Lus Cim: Tsis yog 45 steel nrog txoj kab uas hla ntawm 8-12mm yog qhov ua rau tawg thaum quenching, uas yog ib qho teeb meem nyuaj.Cov kev ntsuas tam sim no tau txais yuav yog qhov nrawm nrawm ntawm cov qauv hauv dej thaum lub sijhawm quenching, lossis roj txias kom tsis txhob tawg.

Teb chaws Suav Hom No. 45 No. UNS Standard No. GB ​​699-88

Tshuaj muaj pes tsawg leeg (%) 0.42-0.50C, 0.17-0.37Si, 0.50-0.80Mn, 0.035P, 0.035S, 0.25Ni, 0.25Cr, 0.25Cu

Zoo li ingot, billet, bar, raj, phaj, strip xeev tsis muaj kev kho cua sov, annealing, normalizing, kub tempering

Tensile zog Mpa 600 Yield zog Mpa 355 Elongation% 16

Folding hauv kev kho pwm
Cov pwm welding consumable qauv rau No.45 steel yog: CMC-E45

Nws yog tib lub vuam pas nrig rau nruab nrab-hardness steel nrog cov khoom sib txuas zoo, haum rau cov cua txias steel, cam khwb cia hlau: xws li ICD5, 7CrSiMnMoV ... stretched qhov chaw, thiab tseem tuaj yeem siv rau kev tsim khoom nyuaj.

Tsis tas li ntawd, muaj qee yam uas yuav tsum tau saib xyuas thaum siv:

1. Ua ntej kev tsim kho hauv qhov chaw ntub dej, cov electrode yuav tsum tau qhuav ntawm 150-200 ° C rau 30-50 feeb.

2. Feem ntau preheating saum 200 ° C, cua txias tom qab vuam, kev ntxhov siab yog qhov zoo tshaj yog tias ua tau.

3. Qhov twg yuav tsum muaj ntau txheej txheej vuam, siv CMC-E30N ua primer kom tau txais cov txiaj ntsig zoo dua.

Hardness HRC 48-52

Cov khoom xyaw tseem ceeb Cr Si Mn C

Muaj feem cuam tshuam tam sim no:

Qhov ntev thiab qhov ntev m / m 3.2 * 350mm 4.0 * 350mm
Lub 45 gauge steel ntawm peb lub Hoobkas yog siv los ua cov pwm puag ntawmpwm.