Cov abrasives ntawm kev sib tsoo pob zeb

Sib tsoo pob zeb feem ntau siv abrasives rau corundum chav kawm abrasives (zirconium corundum, xim av corundum, dawb corundum, thiab lwm yam., xws li daim duab 11)[1,2] , qee qhov super-hard abrasives (CBN) [3] thiab SiC, WC, thiab lwm yam. Vim tias pob zeb diamond thiab muaj zog hloov pauv hlau txheej hauv cov hlau sib tsoo muaj qhov kub thiab txias. sp3 hybridisation xeev rau hauv sp2+ 2P1z xeev, uas yog, pob zeb diamond graphitization, txo cov abrasive sib tsoo kev ua tau zoo [4,5] Qhov no txo ​​cov kev sib tsoo ntawm cov abrasive, thiab yog li pob zeb diamond tsis haum rau kev sib tsoo rail. Txawm hais tias CBN abrasive muaj zog / toughness, thiab kub tsis kam, hnav tsis kam, thermal conductivity, muaj zog sib tsoo muaj peev xwm [6,7] Txawm hais tias CBN abrasives muaj zog / tawv, kub resistant, hnav resistant, thermal conductivity, muaj zog sib tsoo muaj peev xwm, tab sis nws cov particle loj me me (qhov loj tshaj particle loj tsawg dua 500 μm), muaj kev cuam tshuam qhov zoo ntawm kev sib tsoo ntawm qhov kev sib tsoo no. sib tsoo ntxhib thiab hnyav hnyav, thiab kev sib tsoo pob zeb kev lag luam tsis zoo. Corundum abrasives muaj kev hnav zoo, muaj zog / tawv, thiab txiav muaj peev xwm, tus nqi qis, hauv kev sib tsoo tsheb ciav hlau ntawm kev kub ceev, siab load, qhuav sib tsoo, coarse grain loj thiab lwm yam kev khiav hauj lwm huab cua muaj qhov tsis zoo. Zhang Wulin [8] Lub zog compressive ntawm zirconium corundum, calcined xim av corundum thiab dawb corundum thiab kev sib tsoo ntawm cov sib tsoo pob zeb ntawm F16 tau tshuaj xyuas siv cov cuab yeej uniaxial compression, thiab cov txiaj ntsig tau pom tias: lub zog ntawm zirconium corundum yog qhov siab tshaj plaws ntawm MP0 (30 calcined). (124.0 MPa), thiab qhov qis tshaj yog dawb corundum (103.2 MPa); thiab kev sib tsoo sib piv ntawm zirconium, calcined xim av corundum thiab dawb corundum abrasive sib tsoo pob zeb, nyob rau hauv kev txiav txim ntawm magnitude, yog 41.0, 22.4, thiab 11.9; Yog li ntawd, muaj zog / tawv thiab chemically ruaj khov corundum abrasives, tshwj xeeb tshaj yog zirconium corundum thiab xim av corundum, feem ntau yog siv rau hauv kev tsim cov tsheb ciav hlau sib tsoo pob zeb. Tam sim no, lub ntiaj teb no ua tau zoo zirconium corundum abrasive smelting tshuab yog mastered los ntawm Fabkis Saint-Gobain thiab lwm yam lag luam. Yog li ntawd, kev tawg los ntawm cov txheej txheem thev naus laus zis tseem ceeb ntawm zirconium corundum smelting thiab txhim kho kev ua haujlwm siab (siab toughness, hnav tsis kam, kub tsis kam, zoo tus kheej ntse, thiab lwm yam) zirconium corundum abrasives yog qhov tseem ceeb rau kev txhim kho kev sib tsoo pob zeb.

Fig. 1.Zirconium corundum abrasives[1]

Daim duab 2. Dawb corundum abrasives[1]

Daim duab 3.Brown corundum abrasives[1]

Tam sim no, cov pob zeb sib tsoo rau txoj kab tsheb ciav hlau sib tsoo yog tsim los nrog kev sib xyaw ntawm cov khoom sib txawv ntawm cov nplej sib txawv thiab hom.Wang li al.[50] tau kawm txog kev sib tsoo ntawm cov pob zeb sib tsoo nrog qhov sib txawv ntawm zirconium corundum thiab xim av corundum, thiab cov txiaj ntsig tau pom tias nrog kev nce ntawm cov xim av corundum cov ntsiab lus (0% ~ 100%), qhov sib tsoo ntim ntawm cov pob zeb sib tsoo poob. Kev sib piv cov txiaj ntsig qhia tau hais tias qhov sib ntxiv ntawm 10% ~ 30% ntawm cov xim av corundum tuaj yeem ua kom ntseeg tau tias whetstone muaj kev sib tsoo zoo dua thiab tseem txo cov nqi tsim khoom ntawm whetstone.Zhang li al.[11] tshawb xyuas tus cwj pwm sib tsoo ntawm cov pob zeb sib tsoo nrog ntau qhov sib txawv ntawm cov pob zeb sib txawv (F10 ~ F30), thiab cov txiaj ntsig tau pom tias nyob rau hauv ib qho kev thauj khoom, nrog kev txo qis ntawm abrasive grain loj, lub ntsiab sib tsoo ntawm cov pob zeb sib tsoo maj mam hloov los ntawm zawv zawg kev sib txhuam thiab plowing mus rau txiav, thiab kev sib tsoo kev ua tau zoo ntawm cov pob zeb sib tsoo thiab qhov zoo ntawm polished. Hauv kev kawm tom ntej, Zhang et al.[1] txuas ntxiv mus kawm cov khoom ntawm zirconium corundum, xim av corundum thiab dawb corundum abrasives thiab kev sib tsoo tus cwj pwm ntawm cov whetstone sib xws, thiab cov txiaj ntsig tau pom tias cov khoom siv ntawm cov abrasives yog ib qho ntawm cov laj thawj tseem ceeb cuam tshuam rau kev sib tsoo ntawm cov whetstone.Wang li al.[12] Cov txiaj ntsig ntawm txoj kev tshawb fawb pom tau tias kev sib tsoo kev vibration nce nrog qhov txo qis ntawm cov nplej loj ntawm cov pob zeb sib tsoo abrasive. Txawm hais tias muaj ntau qhov kev tshawb fawb ua haujlwm tau ua nyob ib puag ncig ntawm kev sib tsoo pob zeb abrasives, cov txheej txheem kev tswj hwm ntawm cov qauv abrasive (geometry, hom, grain loj, piv, thiab lwm yam) ntawm lub cev thiab tshuaj lom neeg ntawm cov pob zeb sib tsoo (toughness / toughness, lub zog, kub tsis kam, hnav tsis kam, thiab lwm yam) thiab kev pabcuam kev ua haujlwm (tus nqi sib tsoo, kev sib tsoo ntawm qhov sib tsoo, qhov kev pab cuam lub neej, kev ua haujlwm tsis zoo, kev ua haujlwm tsis ua haujlwm rail tom qab sib tsoo) tseem tsis meej.

[1] Zhang Wulin, LIU Changbao, YUAN Yongjie, et al. Kev soj ntsuam qhov cuam tshuam ntawm Abrasive Hnav ntawm Kev Sib Tsoo Kev Ua Haujlwm ntawm Rail Sib Tsoo Pob Zeb [J]. Phau ntawv Journal of Manufacturing Processes, 2021, 64: 493-507.

[2] Wang Xu, Zhou Kun, Yang JW, et al. Cov teebmeem ntawm Abrasive Materials thiab Hardness ntawm Sib Tsoo Log ntawm Rail Sib Tsoo Cwj Pwm [J]. Hnav, 2020, 454-455: 203332.

[3] HUAB TAIS. Tsim thiab sim Kev Tshawb Fawb Kev Kub Ceev Sib Tsoo Test Bench rau Rail CBN Sib Tsoo Wheel [J]. Manufacturing Automation, , 2020, 42(05): 88-91+122.

[4] PENG JIN, ZOU Wenjun. Organic Abrasive cuab yeej [M]. Zhengzhou: Zhengzhou University Xovxwm, 102-244.

[5] Li Boming, ZHAO Bo, Li Qing. Abrasives, Abrasive cuab yeej thiab sib tsoo tshuab [M]. Ob tsab. Beijing: Chemical Industry Press, 2016, 45-270.

[6] ZHAO Biao, DING Wenfeng, CHEN Zhenzhen, et al. Pore ​​Structure Tsim thiab Sib Tsoo Kev Ua Haujlwm ntawm Porous Hlau-bonded CBN Abrasive Wheels Fabricated los ntawm Nqus Sintering [J]. Phau ntawv Journal of Manufacturing Processes, 2019, 44: 125-132.

[7] Zhang Wulin, ZHANG Pengfei, Zhang Jun, et al. Kev soj ntsuam qhov cuam tshuam ntawm Abrasive Grit Loj ntawm Rail Sib Tsoo Cwj Pwm [J]. Phau ntawv Journal of Manufacturing Processes, 2020, 53: 388-395.

[8] Zhang Wulin. Kawm txog Kev Ua Haujlwm Kev Tswj Xyuas Kev Ua Haujlwm ntawm Kev Kub Ceev Rail Sib Tsoo Pob Zeb ntawm Corundum Abrasives [D]. Chengdu: Southwest Jiaotong University, 2021.

[9] YUAN Yongjie, Zhang Wulin, ZHANG Pengfei, et al. Porous sib tsoo log mus rau Alleviating Pre- nkees nkees thiab nce cov khoom tshem tawm Efficiency rau Rail sib tsoo [J]. Tribology International, 2021, 154: 106692

[10] Zhou Kun, Ding Haohao, WANG Ruixiang, et al. Kev Tshawb Fawb Kev Tshawb Fawb Txog Kev Tshem Tawm Cov Khoom Siv Thaum Lub Rail Sib Tsoo Ntawm Qhov Sib Txawv Ntawm Kev Ruaj Ntseg [J]. Tribology International, 2020, 143: 106040.

[11] Zhang Wulin, ZHANG Pengfei, Zhang Jun, et al. Kev soj ntsuam qhov cuam tshuam ntawm Abrasive Grit Loj ntawm Rail Sib Tsoo Cwj Pwm [J]. Phau ntawv Journal of Manufacturing Processes, 2020, 53: 388-395.

[12] Wang YW, GU Kaikai, ZHOU Kun, et al. Kev cuam tshuam ntawm Granularity ntawm Sib Tsoo Pob Zeb ntawm Sib Tsoo Sib Tsoo thiab Cov Khoom Siv Tshem Tawm hauv Rail Sib Tsoo Txheej Txheem [JJ]. Kev Ua Haujlwm ntawm Lub Tsev Haujlwm ntawm Cov Kws Kho Tshuab, Ntu J: Phau ntawv Journal of Engineering Tribology, 2019, 233(2): 355-365.