Lub luag haujlwm ntawm Hlau Hmoov hauv Pob Zeb Diamond Cov Cuab Yeej

Lub luag haujlwm ntawm Hlau Hmoov hauv Pob Zeb Diamond Cov Cuab Yeej

Hlau hmoov yog lub hauv paus tivthaiv siv nyob rau hauv ntau qhov ntau thiab tus nqi qis tshaj nyob rau hauv pob zeb diamond cuab tam matrix formulations. Nws yog dav siv nyob rau hauv kub- nias, sintered pob zeb diamond cuab yeej- xws li pob zeb sib tsoo blocks, pob zeb drilling khoom, thiab pom hniav ntu- feem ntau ua ke nrog tooj liab, tin, cobalt, thiab npib tsib xee. Raws li cov txheej txheem sintering thiab cov kev coj ua ntau lawm, nws lub luag haujlwm tuaj yeem muab faib ua peb yam: qhov zoo, qhov tsis zoo, thiab kev txiav txim siab ua haujlwm.

(Txo Hlau Hmoov)

 

 

1 Txo cov nqi raw khoom thiab optimizes formulation economics

• Hlau hmoov yog pheej yig dua li cobalt los yog siab -purity tooj liab hmoov. Raws li cov ntaub ntawv tseem ceeb ntxiv rau hauv ntau qhov ntau, nws txo qis tus nqi ntawm cov khoom siv raw khoom, ua rau nws qhov tseem ceeb tshaj plaws uas tsis tshua muaj nqi - cov khoom siv rau cov khoom siv pob zeb diamond loj.

 

2 Tswj matrix hardness thiab hnav tsis kam kom haum rau cov khoom sib txawv
Hlau muaj qhov nyuaj hardness; ntxiv cov nqi tsim nyog ua rau cov matrix hnav tsis kam.

• High-hlau formulations: Ua kom matrix hnav tsis kam ua rau lawv tsim nyog rau kev ua granite, siab -lub zog ua vaj tse, thiab nyuaj, siab -quartz substrates, yog li ua kom qeeb matrix noj thiab txuas lub neej cuab yeej.
• Txo cov ntsiab lus hlau: Ua rau cov matrix softer nrog rau tus kheej sai dua - ntse ntse, ua rau nws haum rau cov ntaub ntawv softer xws li marble thiab pob zeb khoom kim heev.

 

3 Txhim kho sintering kev ua tau zoo thiab txhawb cov kua -theem sintering

• Hlau tuaj yeem tsim qis- melting- taw tes alloy theem nrog tin thiab tooj liab. Nyob rau hauv tus qauv kub - nias sintering kub ntau yam (760-830 degree), nws txhawb metallurgical bonding ntawm hmoov hais thiab ua rau kom matrix ceev. Irregularly zoo li tus txo hlau hmoov muaj superior mechanical interlocking piv rau atomized hlau hmoov, li no pab tau lub ntsuab lub cev lub zog.

 

4 Txhim kho txhua yam khaws cia ntawm pob zeb diamond hais
Tom qab sintering, cov hlau-raws li matrix nthuav tawm cov cuab yeej zoo sib xws. Nrog rau kev tsim nyog, cov matrix khov kho encapsulates pob zeb diamond hais, ncua ntxov pob zeb diamond rub - tawm thaum sib tsoo; khaws cia tau zoo dua thaum siv nrog titanium-coated pob zeb diamond.

5 Kho matrix cuam tshuam toughness

• Muab piv rau cov tooj liab ntshiab-raws li matrices, qhov sib ntxiv ntawm cov hlau ua kom tawv tawv. Qhov no ua rau ntu thiab sib tsoo blocks tsis tshua muaj kev puas tsuaj los yog chipping thaum ua cov pob zeb ntxiv dag zog lossis pob zeb nrog kev faib tsis sib xws.

 

Cov ntsiab lus tseem ceeb rau kev tsim qauv tsim
1 Susceptibility rau oxidation

• Hlau hmoov oxidizes yooj yim heev; raug cov dej noo los yog tsis txaus atmospheric tiv thaiv thaum sintering ua rau tsim cov hlau oxides. Cov oxides sib sau ua ke ntawm cov ciam teb, ua rau tsis muaj zog ntawm kev sib txuas ntawm cov hmoov nplej thiab ua rau cov voids lossis tawg hauv matrix, uas ua rau grit shedding thiab txo lub zog matrix. Yog li ntawd, kev ntsuas nruj dua yuav tsum tau tiv thaiv oxidation thaum sib tov, cia, thiab sintering.

 

2 Ntau dhau kev sib txhuam kub tsim thiab kev pheej hmoo ntawm pob zeb diamond thermal degradation

• Hlau muaj qhov nruab nrab thermal conductivity, ua rau muaj cua sov siab thaum lub sij hawm sib tsoo kev sib txhuam. Nyob rau hauv tas li hnyav-load processing, localized kub nce sharply, yooj yim ua rau pob zeb diamond graphitization thiab dulling. Thaum ua cov pob zeb zoo nkauj los yog lub teeb - xim marble, cov ntaub ntawv hlau tuaj yeem oxidize rau cov pob zeb xeb, ua rau cov xim daj mus tas li ntawm pob zeb nto.

 

3 Cov ntsiab lus hlau ntau dhau ua rau cov matrix nkig thiab tsis zoo rau tus kheej -ntxhiab

• Yog hais tias cov hmoov hlau feem ntau siab dhau lawm, lub matrix yuav nyuaj heev thiab tsis muaj tus kheej - ntse ntse. Tom qab ncua kev sib tsoo, lub matrix nto yuav polished; cov pob zeb diamond tsis ua kom pom cov npoo tshiab, ua rau kev poob qis thiab kev ua haujlwm qeeb.

 

4 Qhov cuam tshuam tseem ceeb ntawm qhov loj me thiab morphology ntawm kev ua cov yam ntxwv

• Coarse spherical atomized hlau hmoov muaj zoo flowability tab sis nthuav tawm tsis zoo compactibility thiab tsawg sintering kev ua si. Fine txo cov hmoov hlau muaj kev ua haujlwm siab sintering thiab zoo compactibility tab sis raug kev txom nyem los ntawm cov dej ntws tsis zoo thiab cov hmoov tsis sib xws, uas tuaj yeem ua rau qhov hnyav tsis sib xws hauv cov ntu sib tsoo.

 

 

1. Txo cov hmoov hlau: Porous, irregularly zoo li tus hais nrog siab sintering kev ua si; lub ntsiab kev xaiv rau pob zeb sib tsoo ntu hauv Suav teb.
2. Atomized hlau hmoov: Spherical hais nrog zoo heev flowability; haum rau tag nrho automated, nruam molding ntau lawm, tab sis sintering kev ua yog kuj tsawg.
3. Daim ntawv thov scenarios:

• Hlau -bonded sib tsoo ntu rau granite thiab dav - lub hom phiaj pob zeb laum khoom: Formulations nrog nruab nrab - rau - cov ntsiab lus hlau siab, ntsuas qhov hnav tsis kam thiab tus nqi.
• Mos-matrix sib tsoo ntu rau marble thiab pob zeb khoom kim heev: txo cov hmoov hlau hmoov sib piv thiab ntxiv cov ntsiab lus tooj liab kom txo qis kev pheej hmoo xeb thiab txhim kho tus kheej-ntxhiab.
• Siab- cuam tshuam cov hniav rau cov hauv paus hauv paus: Cov ntsiab lus hlau txo qis nrog cobalt thiab npib tsib xee ntxiv txhawm rau txhim kho qhov tawv thiab tiv thaiv cov hniav.

 

(Diamond Drill Bits Segment)

 

Cov ntsiab lus luv luv
Tus nqi tseem ceeb ntawm cov hmoov hlau yog nyob rau hauv nws lub peev xwm los tsim lub matrix moj khaum ntawmTus nqi qis thaum tswj kev hnav tsis kam thiab sintering ceev.

Nws cov txiaj ntsig suav nrog tus nqi siab -kev ua tau zoo, nruab nrab hnav tsis kam, thiab tawv tawv; nws cov drawbacks yog ib tug nyiam oxidize thiab ua rau xeb paug, nrog rau cov kev pheej hmoo ntawm matrix glazing thiab slipping yog siv ntau tshaj. Formulation engineers sib npaug txiav sharpness, kev pab lub neej, thiab cov nqi tsim khoom los ntawm kev kho cov hlau hmoov cov ntsiab lus thiab particle loj- feem ntau ua ke nrog tooj liab, tin, cobalt, thiab npib tsib xee systems- kom haum rau cov kev khiav hauj lwm tshwj xeeb rau pob zeb lossis pob zeb siv.