CA2040589A1 - Diamond rock tools for percussive and rotary crushing rock drilling - Google Patents

Diamond rock tools for percussive and rotary crushing rock drilling

Info

Publication number
CA2040589A1
CA2040589A1 CA002040589A CA2040589A CA2040589A1 CA 2040589 A1 CA2040589 A1 CA 2040589A1 CA 002040589 A CA002040589 A CA 002040589A CA 2040589 A CA2040589 A CA 2040589A CA 2040589 A1 CA2040589 A1 CA 2040589A1
Authority
CA
Canada
Prior art keywords
rock
percussive
diamond
button
rotary crushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002040589A
Other languages
French (fr)
Inventor
Mats Waldenstrom
Udo Fischer
Lars Hillert
Mahlon Dennis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandvik AB
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2040589A1 publication Critical patent/CA2040589A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/5676—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a cutting face with different segments, e.g. mosaic-type inserts

Abstract

ABSTRACT
The present invention relates to a rock bit button of cemented carbide for percussive or rotary crushing rock drilling. The button is provided with one or more bodies of polycrystalline diamond in the surface produced at high pressure and high temperature in the diamond stable area. Each diamond body is completely surrounded by cemented carbide except the top surface.

Description

al u~ Ll oa:2u ~PIB 2B "BlOUB ';,~.~D~'IK JUR ~-. GOWLI~G I~OU2202-l 2 ~

DI~MQJ~!~ R051~ r~o~ s ~R PI~R~-L135~UE ~t~D ROTR~?Y C~US~lIhlG
K UF~ I LL I ~J~

I ~L~ OF T i~ EN'r I ON
Th~ ~re~en~ in~e!ntlon _~n~erns ~lq f elri Or -~ek ~it~;
~nd b~ltt~ns th~r~40r. ~ p~r~1~r~ll..arly t~ J.n~nntir~n r~ tes 'CQ r-or h '~1 t ~d:l;on~ or ~rr~u~llv~ c.nd ro~rv c1-u~hi nc g. Thr bu~otls ~pri6~ em~n~ c~rb1~cr ~r:~.~1d~d ~th orle ol- m~. ~ r~t.~ 4 Dol~ ;t~llin~ ~i.am~r-ci in .t~
~r~c~ .

pi~,h~sFi~ TtlE INVI~ ITIC~

Th~?r~ re thretAA~ main qroU~s r,' rt~cl: d~illint~ ~tel:hod~:
per-usSiYa~ ratary crusl7lng ~r~d fr2~c~ry cu~irlg rQrk c,rll!inQ~
Tr~ o~rtt~u~ AArti~i rrttary -ru~,hina r4ck t^irilllng the blt ittcitnr 4r~ workin~ as r~ie; crushine, to~ CtrpQ5Ad tl,i rr~Aary C~ n~ rs~ t.~iïlin~ whe!rin tht~ ,s,~,rts ~lork rather a~itt~h ~ ment~ ro~k t~ ill bi~ e,~,er.~lly t~onsie,~s o~ * ct-t~'y i7. $~enl whih is ,-,rti~L~i~d ~ti~h c, rumtt~r of ~r~s~r-C ~o,ttpri~,img z:errtr-~n~ed r~rb:d,r~ t~lY ~1iffererlt t~Pe~, c~ ci, rorl bl ~ t~ h~Yi ~ c'i f ,~sr~ sh ,p~ o~ ~ ,'7~-~ br~hy Q ~ ~ n " ~ f i ~ ~ ~ t~ I n a; ~ r I a: i c i. i m t_ n t e ~ ! e di r ~ } d t i c, s h e I
qrAt nu~ ter/; a,-,~' g-c~t ,e~ tl-c~ A n~;er~ .
For ~7ti? iAUr~sivt,;t art,~, ro, 2,ry ~ t~skiniA, rt~ii-k clr~llit~ htei irsi~ rt~

~ensr~ a rount~o,-, ~hape. rif ~~;m, ~ t.yl i rAI~Al'er ~Jl l:h c~lnd,~ Ati~t A~uria~A~ genOE~ r~i~r, ~?ti ~o v~tYt r-t i~;tllttr~rt.
I~cr ~ r y ~ n t_t r oi~ d r ' ~ ~ a - h il~ i n ~, er t: ~ ~,r ~ r ov i d A,i ~ l with -, -harp ,rC,et~ ~etinç ~ ttc-~r, 91 11~ )a~ ; "131U~t~ S.~.~DYIK .It!R .,~, riowLl~:G [~100:~/02~
2 ~

Th~?r~? ~.lres~iy 6?~ C ~ nu~ r ~f d~f~r~nt hlgh pr~csc~re ~hi gll teln~erat-~re s~ nt~rrr~cl c~ erS Dro~ ed ~4i t.h pe~iyc:r$~ m;;nd l~y~-s. Th~e hlgh L~r rr~sl~t~n' cutter ~tool~ ar~ mainiy ~e~ for oll ~rlliirl~.
l'.~e ~ hnlq~ w~en pr~::cl~l~in~ s~ch palycryst~llirte ~i~mo~l ~:o~ Li~ns hiQh pressure-hi9h temp~r~.t~.~r~? tHL~r~ h~s o~n a~se~ibeo ir~ mber o~ patenl:s, ~.g.:
US ~at~nt ~lo 2~4tr~4~ igh ~p~-~ature hi~h pre~ re ~pF~r~ s"~
US Patr~r~ s. ;4~ ! 74~: "3iamond comPa-t a~r~ ive"~
~ oh ~ref~ r~ ~oncied bQdy ~ ~vi nq mor~? ' h~n ~ v~ . cli ~ nd and a ~ i n~er: Co~ hii . Tl, Cr ~ ~n ~ ~. etc, Th~e o~t~ ts di sel c7se th~ use of ~ prRssure and a tr~m~ r~tu~e ~h~re ~i~rnonci ls ~he ~t~ble oh~se.
In ~om~ t~ .t~n~s~ e.~ S P~t~rtt t~lo~; 4!764!4-~4 ~nti ~,7~k~ C;1 h jç~h pr:~sur~-hig~ p~ir~t~lre s~int6~rG~
rry~ o d~mond ~.0015 ~re deseribed. Ir~ 5'C
p~t~ tn~ di. arncl~t~ layl3r i5 bondet~ tt3 ~ su~por~ b~dy h~jn~
~. c~m~ls~ . no~-Pl~n~ geofnetry b~ me~n~ O~c a th1n layer c~f a r e ~ r~C~ r~ m ~tRrl al ~pl l~l by PVD sr C~D techn~.a~.ie.
In the s~con~i pa~nt ~mp~r~ resiist:a~ ahr~ n ?olyrr~s~.e,ll~ne d1~mcnd boclie~; air~g deni~i-ib~d k~ving cli~Jiert~nt ~dcil1:'ons o: ~lrl~ier r~e~aIs c~t ~iff~rs~n's dl~t~n~;Q~ firri~ ~h~, ~c~rt:inQ SL1~4 ~ce ecQnt ~ elo~nl-t in t.t~s fi~ t!le ur,e? ~ ne or mone rl~,ln~Jcu~ y~r~ p~lycr-yE:~111ne d:l~mnnd an ~:h~ tc;p C;~rrac~ o~ o~m~r,ted c~rbid~ ~it'ct~n.

31 i1.1/11 oa 20 ~18 21~ 281U8i~ SANDV]K JIJR ~ GOWLING F~U04,~D21 1~ C~ nt '1~ S.,I!, c~i5tlo3~c ro~ b~t~n~ inclunln~ s-lch a rJol ycr~ l l i ne di ~mc~n~ s~lrf el~ or~ ~t3p s1f the cem~n~6~d e~ri7i ciR b~lttor~; h~vi ny ~oung ' ~; mad~ us~ el ~ ci ~y b~ 0 ~.n~ 13~ x lC1 p. ~ 3 t~. c~4 ~icler~t ~f ~he7rln2~1 ~ ær31~r, bo~twc~?n ~,~3 and .,~4 x iO i~ h~r~ 3 ~tw~n ,538~1 ~ncl ~1,1 l~lf:;h ~.rlcl ~ rcivity ~ een ~ ~;na 1.'~0 CJ~, ~n e~t~ ve;, sum~nL ~ 5~;1 D~:;Q~1 i n L15 P~.rn~ ~7 ~ 3 in-lu~ing 2~ cuttinq bl~nk ~or ~i~R C1i'1 ~ clr11 bi~
r.i n~in~ a ~ Ib~;tratfi~ , h~rd ma~t~ri~l h~v~n;; ~ cl!tti n~
~iurf ;~c c wi ~ n s;tr i a~ cr~ i aun~nd t~i ~7DE!rs~
~n Si- OO~R~ r~-an~d in ~a~lt~us p~ rns~
US P~ di~clq~s æ ~ut~ m~n. ct,~m,.ri~.~.n:~
a ~;tutl .~nd 2, ~:c~mP~lt~ bond~d the!r~tc~.
coir,~oa:i~e cr~mpri~ s~ sti-at~ ittsrme~ ;}f ~ri~er~ t c~bld~ an~ ~ d~nond t~yl~r bo~ded to 1:h~ 3ub~;~.ri~.tiR^.

Tl~ t~r~ ?tl ~h~ dia~non~ ~yer an~ ~.h~ F.L~ r~ .t~;
~ln~ct by ~ rnatin~ ridg~s Of dl~nlc!rd an~ rem~nte c,~,~bicl~
~h~r_h ~r~ t-:~lly int~lDtkerir lhe ~p 3!irf~s~
~i~m~ ly ,.~. e~n~ n~ cQ~rl~y t.h~ wh~ ser-f.. rh,z ~id~ ot: tr~ m~n~ b~t~y are n~t in direct ~Jnt:~ct ~i7;,b ~rl-~

ar,'s~d r~rl~i ~e .U~ ~t.~ 19,.~10 ~i6cl~ s a c4trin~ el~me.~l~ wi~h ~
3h~a~d d~ am~r~ Ul~ k` i hl~ e. Th~ i n~ 0i ~mnrlt ~ r rrj ~rom ~ sin;~ ~r~uiar euttinq, blank ~y cut~in~l ~nc~ h~ c in~ n1~ oirt~n~ ~o idc~n~ l on~ of tn~ cm~n~
~nd t~LInc~in~ t:h~ rled ~eQmt~ . Al~u in ~.hi~ C~5 ~iurfsc~ o; ~r,e di~mond bo~y i~ r~untihu~ls ar~-~ th~ r~
n~t ;l n ~ii r~c~ ;n~ k L'Ji ~ ny ~en~e~ c , 'Jl U~ Ll ~ t~ 'P,lll'~p S~.'iD~'IK JtlR ~ L,IKG ~IIJII.,, 1)"

ye~ e~h~r d~v~ met7~; ~n ~chi~ flt~ld i~ th~ emen~e~1 e:~rbid~ ~nc!ies h~vitlg r~iff~rr~nt 3r.r-lct~,~r~C ~tt di f~tsr~s~r~
rl~r~ ~r am 'cn~ su-t~r~.
IiS r~ ent ~ 4~ 5 t~i~closes r~c~ lt bu~r.,n~ t~f cl~n~cr7tc~
~2-blr.~ ~7n~ 71nrt a~ F?t~-ph~7~Q c~/ F surrotlr7 1ed b- ~ sttrfa~6 zone nr cent~r7~.e;i Ca. hide ~ n4 e4~-Dh2~se ~n:l ~7r,~V` 5-~ low c3rlt~?n~ ~tt~ Ct~72l t in i~? =urf~c~ ;.nd ~ n~r ~:CIr~ n~ uf c rab ~ l t ~ 7 t ,~ L ~ -D h a se ~: ~r :D .
;JS P~enl: 4~rïrl0~4~32 dlsc~ ;es ~-t7C;; b1 ons of caln~n~ed G~t~ide~ h~v~ ec:r7t~?nt uf l~in~er c~h~s~ in ~hH ~urfa~ r~ th~t is l~,~ær ~r,~ jn .h~ cen1;~r nl~h~sr th~r, ~:hr~ n~r~r~ni c.~,n~:~nt.
rn the c~n~:~r t~Llr~re i~ ~ vcn~ h~Yan~ a uni ;~rm r~:n~er,t ,~f b~ r:a~r phe(~ . l`he ':un~ n ~arbidr* ~r~in si~r3 i ~ ~r,i;-~r~h ~ ~ r ~u ~ LI ~ t~ h e 3hJE~. a.- Tlt~ JU-.
. Q f ' ~ r~re~n~ inYr~ n ~ pr~vl~c- a r~
of cre~l)r~ni:~d c~rbidrD w~.tr~ e~ne? c~r rno- ~ br~d~
poly~ryst~i3.inii? diamond ln ~hr ="lrfa_~ with hlgn ~r,~' ~ni,Qr~n r ~ an c ~ n~i b ~d y ~ b r Id i e5 ~ v 2; i h t e~r i n g 2 ~ h l cl h s1re~ .lr~ "i~h ~ &t~r~ ir~ the~ d;.~mc~r,5 nLtot~le e~rLa~
; 2 f ~ r t h r~ r oh J e~ t .'~ n v~n ~ i on t~ . h: e i ~ i s i b l e ' a ~ he e~f~?c'~ ~ di a~ nd on tn~ resl eit:~n~ ta cl~ ins ~m~; chip~in~ æ.rld to ~r 2!~5 ~*11 ~.~ t.o m~ nYe ~ihs~
r:nns~ o~ ~C thr~ ~ran~ r~ ~t ~m~ln~i fr~r~ ;toc It i--i ri'~ L~:h~r ~n ~ ic~:t o~ tl~e ~nvs3ntj rJn laa c7t11~.fl~,r Dr of whi~h ~t,q~ ~nac:'iinlnq r~t~eratj~7n4 C;~7 ~ ir~e ~
1 C~ CC)~it. ~

'~1 0~11 08.~ ff 21~108~ DYIK J~R ~ Gl)WLl.`iG b~!lOOB/o~.

SUi`~ RY OF 'rHE ~ NU
Qrdln~ to thQ pr~s~n~ ln~ t~,on ther~ i~ prr~vld~d ~ ro~
~1 t b~lt~;on ~2r ,P~rcuæ0i ve ar~d rC~t~ry cr~shl n~3 r~:k dri l l i ng ~ml~rislng ~ body o~ cem~nt~ c~rbidc~ prov~c1ed ~ith Or7E ~r-mc~re bodi0s ~f ~e~ly~rysitallln~ .di~mon~ ~n t he surfac~ ~nd ,~rc~e~u~d al high nress~lr~ and hi~h temp~r~.t~re~
c~h ~ mon~ body i~ mDletely ~LIrrcl~ln~ bY c~n~e2nted ~r~ide! ~X~:eC!t the top ~rf~c~
The rc~k ~ U~*on abovi? c~n l:~e adapt~ to ~iff~r~nt types of roc.4s ~y ch~ngirtg the m~tsriRl ?r~p~?rti~s an~ g~om~trie~ ;
Q~ rh~ me~n~e~i carb.id~ ~n~or tt~R pc~lycryst~llir7r ~lam~nd~
~s ~e~ ;y h~rctne~ elJ,sti~lty ~nd ~herm~l ~xpansion~ ~i~ing di ~er~ t ~e~r fesis~ ce and lmpac~ ~rSen4th ~ ~h~ butl:~n ~its~
P~r~ slv~ rock drlllihg t655t~ us~ng butt~ns of t~ ty~
~escr1~d .~n US P~nt 4!all~01 ~ith cont~.h~dqus poly-~r~ llinq~ r~ ~n the s~lrf~ of ~emer-t~d c~r~ld~ have r~ve~ d a t~ ency of cr~cklr7g ~h~:l ctl1pplng o~ p~rt o~
thçi! di ams: n~ yE~r .
~h~n un~ on~ or mer~ ~iscr~t~ bodi~?s of pal~cry~t~llinR
~i~.m~-d ~cc:o, dln~ t~ th~ inv~n~lon il: w.~ ~urpri~n~1y ~cun~
tn~ he ~r~c~in~ ~n~ ippir 4 ~ndHn~;y considerab.ly d~erna~ed . A1: tn~ ti ~e th~ w~r resi sta~ee of th~
buttor~; w~a, surpri~ir-~ y ~
T h~ ol~rla~lon ~r thc~r~l ~4fe~ th~ inorQ~s~ nf the resist~n~:a ~in~;~ cracking ~.n~ e~ippin~ and ~g~in~t w~ring, mlqht b~ v~ra~le str~ s;?t~rn eaus~d ~y th~
dif~ n~ b~twe~ h~ th~r~ilal e;~h~lc7n ~f th~ on~ bod~

. ~ ~

~1 U~ J !): 2 " ~: ~, , h ' ~; 1 U ~ .';h.'~l:)S 1~; .II~R - ~ GO~'L I ~G I~I UU7 / 0 2 1 ~nd the c~mented ear~ bady~ givin~ the ~ cr~ hl~h and u~if~rm ~ rex3,ve pr~;tres.-..
~ ~ur~h~r impro~mQnt of l:lle . b~h~iour ~cJi th~? butt4ns P~a~a reve~ h~n ~sin~ nt~d c~rbide body hAvlng ~ m~ll.tl-~tr~lctur~ a~c:o, din~ US p~ nt 4~74~ 5, FI(~.7. ,.t ~s r~ri~in~ fe?~lnd th~t thEa cr~ing ~ dency o~ th~ ~em~nt~d c~rbid~ sn t~lC! bot~o~ o~ ~h~ bodi~s of p~ly~ry~al lin~
da~ nd eon .~ bly d~?cre~s~ ~cn~p~red tr~ ~he torr~spondin~
q~netr~ ~nd c~;7po~ ian ~ ho~, th~ ltl-struGtur~ ~a~bide.
'i;O 't:~R ~ r r~si stan~e of th~ b~ttons Wi~5 i mprovea at ~h~ sa~e tim~.

~R~ )ES~,~IR I 15~ 0~ ~ HE DR~NGS

1 = oS~en~ bld~ bl~ton = 5t~el t~dy ~ - di~mond bo~y 4 ~ cem~!n~ed c~r~ide: Cn po~r zon~
S ~ c~ n~ c~rb~ de : Co rl ~h zone i?nte~ ~ar~i~e; et;~. ph~se rich x~ne F~G~ 1 ~5n:3h5 3 5t-.ndar~ ~lt for percussiY~ rock dri~l in~d pra i~ it~ sn*~d c2rbids but~ns.
I:iG.~ sh~ ta~d~rd ~ or ro~ry ~r~hing ro~k dri~lin~
pr~vi ~s~d ~i ~h ce!n~n ~ a~bi d~ b~ltto~

rIG~ shc:ws ~. ~;tanc1~rd cem~n~e~ ~4rb~de i:u~on w~thaut d i ~mon d F I6 . 4 shcJws ~ butto~7 wh~re ~he ce~nnnted e~rbi de~ i ~5 cont4l nl n~

'01 0~/11 00:2~ ~8 ,.8 281U88 9~ND~'IK ,IIIR ~ GO~VLlr`~'G ~IU08/U24 J~

ph~ rr~ln~s~ b~ urf.~c~ n~ o~ ~em~nt~d c~rbid~
~re~? ~f eta-pha~.
F1G.~ ow~ ~ b~t~o-l of ~amenl~ arbid~ wI~h a ~t~p I~yer o~
~ ' ysrys~t~ mc~ d .
FIG.~ ws a. b~lt~on e~ c~M~n~ed c~rbide~ provid~q~ w11:~, f~ve boc~ e?f p~alys~ryst~11ine di~ tnp ln th~ ~1lrf~c4 ~1~. 7 ~how~ ~ bu~on ~f c~ment6~d ca~bid~ provid~d W~h l:ive b~dles o~ ~alycrys~ mon~ ~n ~h~? ~ur~a~e, ~h~ ~or~.
of th~ ~mG1r~Qd ~r~ld~ bo:iy i~a containlr~g ~ rhase ~urrourrQ'~s~ by ~ ~urfac:e 2an~ of cf~mented c~rbi~e fre~ ~f ~t~-~h rI6~ .4 chor~ ~ari~r~ts ~o~iments ~f bit ~L~ttons ~cc~rdir,~
~o ~h~ i nventi nn .
FIG. 15 sh~ws ~ l$~ht op~ic~l photo in hX of a ~;~?etiorl of ttc~ cc~r~ to the inv~ntiun ln ~hirh - di amond bDdy . .
c~men~cr2d car~I ~e 2 cob~l t, pt:~Qr Znnr C r~ ,m~nt~i?d c~rbiele . ,.ctne wi~h h~ ccrb~.lt cor-t~rn~
~ ~ C~m~nted car3id0: ~t~ hase, c~n~aIning c~re F~r, 1~ ~how~ ~ ~cannlng ele~tron micrD~r~oh ln ioox n~
the ~onnci~.r~ c?Qn ~he di ~t~nd body~ 3 arld thQ ce~rer~t~rd car~ ;hcrr~rin~ th~ ~xe~l}~rr~ bondir-g.
, . , ,~ .
~E~ILED DL~iCR~P~ ~CIN OF THE Il~iVENT.~OhlA
Th~ r~ bit ~ n ~c~r~ir~ to th~ Pr6~ nt ~nven~ion i~;
proyi~:les~ ~r/lth aaEI or mor~ p~lyery~lllne ~l~mnn~ ~dies in th~ ~rf~cf2. ~k~ Ji~mc:nd bDdi~s c~n b~ of ~rlou.~ ~h~pes such RS spharlc:d~i. oval~ corllc~l or cy~ rl~l C~ ihl h sl~ap~s wl th ~ roun~ bo~m ~r~ pr~f ~tre~ h~r mor~ asymmetri c:~l . . .

u~ ua '3 S5'iB 'U ~'BlU~U .'7A.~ JUR ~ GOIs'Ll~iG [~UO~l~U21 ~h~p~ n ~ us~ such ~5 rect~hyul ~r or a r~t:t~ng~ r C~05g P~ rn ~ tt X ~r ~ s~ Sn fr~ tnp vi~ 4 cc)L~r~
th red ~e St:re~5':i c3nc~n~ratinn point~ and r dL~C~ r~r~lrlg~
0- ~nc!' e~ on ~es ~n~ corn~r~ wolJl d ~f3 w~l l r~ur~,dR~ cJr ~h-m~erred. I:?t! ~Dr ~h~s such e~rs pyr~.~nlds~sgLIar~ p~r~mlds a~
chRvrt~r,s m~ e e~c~21 1ent ~Lltter ~oin~s a~
For s~ci~ pll~ions t:~e di.~m~nd m~.y be~ ~ispos~-d on th~
con'~ ar~l~e ~rf~cs? ir7 rin~f3 or ~pit-als~
C;7n7b~ n~tirJi~s r~f ~ ¢~nt sh~pes And ~ s ~n th~ same ~7Llttc3r7 ~n ~1 5~ L~
lr,d~p~dent 0. th~ p~ th~ ~r4~c~ 1 ~nQt~ ~ th6~ di an1cnd ~-cd~J ~h~ 7~ m~e tha- 1 mnl~ ~7r ~f~r~biy ~ 7m and the height more t~n t~5 ~ pr~er~ly ~-5 mm. Tn~a si~e ~7~ th~
~Qdy of ~ cr~st.?7 iine di~7~nd is dep~ndir-g c~n '~h~ siz~ 4f th~ b~!ttGn ~nd ti7~ mber o~ ~7i~mcn~ bad1es. 5n7.~11 bGdie~i ~re ' ~7ss s~n~i ~i v~ cr~skin~ ~n~ chipp~n~ ~an ls,r~2r bodl~.
Tne r~ael. ~ ttor sh~l 1 h~ a dian6?t:er o`~ 5-:~0 mm ~1 prR~C~ras7y 7-;5 m.~A Ot:her ~h~pt?s than cylindric:al é~re also p~ s~ e 3LIch 3'~5 chisel ~;h~p~d, sDheric~l ~ nv~1 rJr coni~

Gl !l~r rnor~? as~ym~ç~tric ~t~ap~?~ could ~150 b~ ~s2~ s~l~h as ~^eei:~.rlqul~r, 7yr-~mi~s or squ~rq pyr~n7ids~

'rrlr~ nl~!mb~r _~r d~o~ ~c7~ies ~hail be ~t leë~si: (~hE!, r~bi y les~i t.h, n 1~ ne preferred ~ odlmRht i~ .jLI~
~7ne ~or,~ di~mQn~ l-o~y on t~ 7f thQ bLit~r~ ~i th ~.
5~r~ ~C~ r~ h ~7~ lL--SP %, pr-~rably l~-XO '~., of the d~lnet~ 7f ' kq~ c~?men~ carbide ~LItton in~pi~n~t~ f the ~h~p~ r tl7~ di~tite~-d ~o~y, A~t~ ~r pref~?rre~ ~mbD~ a!~k i~;
n~l bod i es; or~ o ?~ I h~ butt.o~ 7 7. t . .

~1 U.l~ll 0~:2:1 ~lô 2~1 2UlO~U 'JL~DVII~ Jl.'R :~ GO~'LI~G 121010~U2d The distance between the ~iamon~ bodi~s depend3 on the sl~ o$ th~ ~u~ nd the otlmbe~ o~ diam~n~ bO~lQ~. 1C1-50 l~"
prii~f~r~bly lS-:~0 ~.~ o~ thR ~;po~ed buttoh ~r~l?a ~h~ll b~?
covsr~d by dlamond bodie~.
Prsfer~bly th~ ss~D~ration di~;tan~o b~tw~n 4d.~tc9 hli~l b~ , pr~f~rably 1-3 mm.
The ~lamond b~dle~ c~n b~a loca~ ym~et~lcally or ~ymnQ~mle~ly ~r~01lnd thE? but~o~. The~ dlamond ~ r~
prc~er2bly clos~r to ~ach c~h4r dl- ~rl!!A!~ ~nor~ ~xpR~ad ~n r. d~20~ndinq ~ ~her~ ths~ but~on i~ aced In 'che drill bi~. .
Th~ vol yc:rys~ ne di ~mond bo~y ~hai l ~1 so t~e ad~p~ he ty~ o~ r~ k a~n~ drlllln~ m~thod b~ ~h~o~ing ~he ~rain ~; thQ di~rnond i~n~ ~hE~ ~mount of ~ind~r metal~
rhe ~r~i n 5i ~t~ of the, d~ amond sh~ a ~ 50~ ml crotn~'c~r ~
preferab~y .~5--15~ ~i,cro-neter, Th~ ond ~ay b~ o~ on1y ore nont~ Qr~ln 6i.,~ or c;onsis1~ a m~ur~ of ~ h as 9~1 ~ro Q~ 40 micro~ r ~n~ 20 ~Q of 1~ mi~r::m~t~r~
Dl~.e; ~nt ~YP~5 ~f b~nd~r metal~ can ~e us~d in ~he dtamond bod~ Ch 4S CO? ~i P ~0~ Ti t Zr~ W3 ~1, T~ Fe! Cr~
~::u5~t~. o-~ ~11DY~ b~twtaen ~h~m.
Th~ ~m~unt o~ b~ nd~r ~t.l shal 1 be 1-4t~ vs~ f., prQ~Rrnbl y 5--2D vol . ~.
~n a~di~ ~h~r hard mat~. ial~, pre~erably' ~e~s th~n ~iO
ut~ . c~n b~ ~d~d to the po~y~:r~s~ al 1 in~ dl~mor~d ~ody q;uch SiC, ~re~ WDl TiN~ Zr~, ~rhl~ Tir" ~ra~Nb)~
Cr-e~rbid~s. ~lN~ Si 1~ t~. Bff W~ll a~ ~hl~ r~ of SiC, ~iN~ te~ ~See VS. F'~t~r~t 4~76~ 4C) ) ai u~ PI~ lO~t; 9A.~U~'IK JUR ~ G(I~sLI.~G [~;I)ll 0~-~

Tl~e bodi~3s of po1ycrysta11ine ~iamond may have di~erent lev~ls ~. ~lnder rhE~ di~f~r~n~ di~ an-o~s from ~he .Jork1rl9 s~r~Ac~ ~ccorclin~ to US P~ent 4!76h,04D.
, he cQrn~nten car bl d~ ~r~e 51~ ch3~h ~ h r~:pe~ te t~e o; roci~ drll~ln~ hethoe~ E; imp~rt~ . to chot~s~
r~ grad~? which h~s a suit~ 9~t- r~?slstane~ corrp~red to ~h~'c of ~he poly~-ryst~lline di~clR~ bo~y. T~e binder phase ~n~ent gmen~e~ cflrbide ~rad~ sh.a~ elght .
pre~er~b'y e~ 2 ~ ht '~. f~r- p~rcu~si~q and prnf~r4bly 5 ~ iQ~It '~ r rotar~ cr~shlng ro~k dr~ b~lt~on~ 2r~d ~h~ Qrain si2~ of the ~eme~t~carbid~ ~t least ~ mir-ro~eter~
~r~fE~r;~ly ~-b n~iero~n~er.
ln ~ pr~ferre~ ~mbodlfns~n~t ~he cemen~ed car~lde b~dy sh~ll l~a~e ~ c~re cont~in;~rls~ et~-~hase, T~e ~ of thi~ cor~ ~h~ll be 'Q~9~ r-4~fer~ly ~0-65% o~ the tot~ t ~f ~:~me~ed c~rbi de i r: ~e b~y~
~h~ ~;ore ~h~uld c~nt~in at lea-t 2'f. bY Y~ mQ~ pr~r6~1y le~st ~% b~ Ynl~rre 2f e~ta~p~ x~ b~t at m4!3~C 6C7;'. ~y v~lLlme pr~f ~ra~l y ~t ~ho most 3~i',' by vol ume.
~n the _ona Yre~ o~ ~ta~~ha~ the cc~nt~t o~ bln~r ,~na~
~.~?. in G~-te-al l~h~ ront~ t of c~haltl6h~11 in ~h~ r~ac6~ b~
O? l-G.~ pr~fer~ly ~!~-0~7 ~f ~h~ no~ninal car t~nt ~ nder asn ~tld the bi r~d~r ph~se conten~ ~;hal 1 1 rl~r~ 1 n -t,h~
~lr~ct l~n tow~r:ls th~ tor~ p ~o a m~;im~n cf a~
pref~r~ly i~4-2,5 c~ the no~inal ~c~r,t~nt ~ ~inaer ch~e.
'th6~ wid~h o~ ~he ~:one ponr of bin~r phA.,~ sh~.l L ~e. ~ J
pref~ ly 0..~.-~. 7 ~ th~ hid~h of thE~ ~On? 4r~ of ~ has t at 16~a5~ ~.4 ~ nd pre~FRr~bly ~t L~ m in ~ .h.
,h~ b~di~ r~ o~ oryst~llln~ diamon~ y e~ nd ~ c)rter ~r lonoer d-4s~ne~ in~o ~e ~emer~t0~ ,.rbld~ ha~y ~nd the 91 ~ ; ~J~ ,ht~ S~ DYIX JIIR ~ ~ GOWLI~G I~IU12/U2~
3 ~ ~3 ~

dl~mottd ~adi~c~ c~n tse in ~n~c~ wi~l7 all thrs~e descri~ed zon~ prof~:rahlY in cont~ct only with tl-~ b~n~er phas6? pe~Dr ~one.
In ~nr embo~i ment the ~l amand body CDn~ 5 ~f ~n~
blq w~l crysil:alll~ed qr~ln surr~unded ~y ~n~i gra~ns. I~
~n~her cmbaQirnent the di~non~ body cons;i~;ts o~ ~ presin~red ~ody in ~hich th~ blnd~r m~t~l h~ be~an G!xtra~t~d by aclds.
The ~6!merltæu c~rbid~ bu~tons ar~ nuf ~c~L~red by pc~wd~r mct~ll~rgir~l m~tho~. t'h~ h~lesi f~r the ~lamond bodies ar~
pr~er~bly m~ ore sint~r~n~ oa~he?r in 2. ~p~r~te c~perAation ~r ~y ~qmpelct:lng in ~ ~p~tally sle~igned ~o~l.
Partic~.~ia~ly in ~ c~se of 'che multi-~tr~c~ur~ embrdj.m~,7t ~h~ hol~s m~ be ~de ~4ter th~ ~;in~rin~ of ~h~ 2n~ecJ
earbi d~. -tcr ~i nt ~r j. ng 'c h~ hol ~s ar~ f ~ l ~ ed wi ~. h d am~1n~ po~d~:r ~n~ blndsr m~t~l an~ oth~r i~gredi?n~a~ SQ~lY~ nd sln~r~?d ~t ~iy,~l Dr~ re~ nl~r~ than S~5 ~Pa? prE?~:er~bly ~ 6-7 5P~"
~nd ~' a tempQr~tll~e ~ m~r~ thar7 1~00~ ,pre~ra~ly 1700~C :~
for i~; minu~es~ pr6~f~r~bly ~bt~u~ ~ min~ltes~
Th~ ~or-ten4 ~f ~indç7r m~ta~l ln ~h~ d~ an~on~ bc:dy may be~
r:or~ol1ed ~i~h~r by ~a~ing the but~on b~?4uro fillin~
~ith dlamon~ with a thi~ leyer of e.g. Ii~l ~Y ~ or PV~3-m~h~ds clr by u~ thin ~ 5U~f1 a~ Mo a~
cliscl~!sed in U~i F`etent 4~7~4;4~;4, Qf tQr hi ~h~l?r~scur e s;i nt~r i n~ th~ ~utts:~n i ~ st4~ nd ~roun~ t~ f ir~ 3hape ~rld dlme~slor-. ' .

'31 ~ SA.`.Di'l~S JLII~ UilLlhC 1~ol3/o2l ~ f~ >~ ~ ~

EX~ 1Pl_E 1 r E;~;C U~;S i Vc RaCI ~ I LL I NG

~n a tes~ i n ~ 7uart i t:~ qL~ ry ~he p~nE7~rati ~n rate and th~
e~ h of thD bi'c~ ~ith t~ltt3ns ~::c?rqin~ ~o the inv6~n~1~n hlnr~ co-np~re~ to ~it~ wi th b~ton5 o~ conv~nt~4n2~1 ~:e~ent~d carbid~ ~r7d to bits rPi~t- b~ ns haY:in9 a conti~s~
~c~p la~r clf p:~ly~ry~;t~l~ine di~mund~ ofte?n n~med Pi!C.
.41~ b~t'~ons t~d ~he s~snc~ compo~ltlon.
The s~ri.ll I~it havin~ ~ buttans on the pE~rlph~?ry ~ a hit with ;~ sp~ei~l ~nd s~rc~n~3 cc)i~s~ructlon f~r ~IS~ in Y~ry har roc ~ 5 , ~ I Ei . 1 ~ .

' 4. ~ utt~ns, ~ the p~ripher~ on~ t6~ f c~ n~ c~rb~dR wi~h 6 welnt7t `~ b~l~ ~nd 94 ~ight t7 W~
ha~in~ ~ ~r~in 5iZ~2 of 2 mi,~rnm~ter. rh~ rdrre~s ~5 14S~

~it ~, ~FI~ 11 buttQns on the perïphory c~3n~ist.~
c~nen~ d .~roide havin~ a core 1:hal: cont~Lin~cl ~?ta-ph~se ~urraunded by a sur;~2 ~an~? o~ c~ ?nt~d c~fbid~ ~ree of ~t~ h~ vln~ a low cD~l:eh~ o~ rob~lt ~:, w~igh'c ~.) at t~le ~;ur f~eQ ~nd a high~r :ontent ~f cob~lt (11 wolQ~It ~.?
5~ he ~ h~se ~one!.

Elt CO ~FIG.~ ll button~ on the p4~riphæry cc~n~ t.~d ~f ce~en' e~ c~r!:~lde h~vlhg a c~n~r.~ ug ;~! 7 m~n ~h1e~ p lny~r ~ pol yeryst~l 1 i n~ nc~nd~

E~it D, ~FIG.~ Rll ~uttons4 o~ thE~ p~rlpner~ ~n~ f ce~ent~d c~rbide h~ving ~ b~dles aF D~ cry~t~l 1 ine '91 II~ li U8:"5 ~B Z8 "hlU!~8 .S~ ( ,ILIR ~ GO~LI.^`;G [;~Iol~/OZ~
r ~ ~

di~nnd c~m~l~tely ~sJtrr~n~r~ by ce~n~d carbldr~
e-:c~pt the tcp s-lrf~ce ar cr~rdinr~ ~n t~l~ inYentit~n, Bit E. (f;L~i~7) Qll b~ttons ctn l:he periphery c:ons ~tq~ ç~f :~m~nt~c- c~rbidra ~lav~ng ~iYe bodir~ r~tf pQ~yc~yst~llin~
dlar,10nd c~mDl~ely ~urrounded by e~ nt~ c~rblde r*~c~' th~ ~p ~tur~a~:~ a~ r~di~g to th~? inv~n~
h~ uttons c~nsl~e~ of ~r~ carblde h~virl~
c~r~ ne~ ~ta-ah~;~ su~r~r1r~ed ~y ~ ~r~cP
~on~t ~ me~t*d ca, bir~e ~r~ ~ph~se h~v~
l n~ s~n ~en~ o; cobal t t;; t~lel ~ht %? ~ tht~ f ~ce ar,d ~i d Co-c~nr.~n~ lncr~5i.n~ ~ow~tr~ ths~ eJ~A~pha~se C~re tc a sn~ m o~ il 'J.~
Th~ ho) q1s in t~e b~lttc~n were ~n~dr b~ ore ~ s~n~rinc? nf e cem~tn~ced c~rbi~e. 'rne ~an~on~ ~o~ies ~er~ ~ymm~trl~a~ l~
pl~ 2cco~din~ ts:~ F16.6, they h2d a diame~er cf ~~.'3 m~n ~n~l 2. ~et~th ~f 2 n~n and h~d a spheri c~.l b~tto-n .

I h~ test d~'ca ~re:
.4ppltc~atic1n2 E:ench ~r llinq in very ,~br~iY~ al.tcLr~it~
F~e k ~r i 1 1 i n~ : C~P l 1:~5 ~rilling ria~: R~;;i;; 71;2 X~ 2c ~ Df~ess~urel 190 ~r .~troke tJQ~ition~ ~
d ~rQs~tr~2 70-~0 b~r ~tc~i or Or~e~sur6?: 6t? b~.

?,~-?riort: 12a r~p~h.
~i r press!~r~: 4~ .7 t7~r ~1 e ~epth;

, ,.

. .

U~6 ~ .ffll~h8 SA.~U~IX J[IR~ ~ GO~LlhC; l~01.-, 02-l a ?3 . ~3 ~
~SUL T5 ~ype of~3O of b1ts~ve l1f~ Flv~r~g~Chipping tan m ~Hn~tr~r, ~ndehey m p~r ~i n .
(FIG.~.~ a 111 1~ 1 no 1~ ~r IG~ 4~ ~ lBC~ no iF~G~ 2a~ yes D ~ G . o ) ~ 5 n c~
(F ~5, 7~ ~ 64~ 1.. 5 no cXh~lPL~ ~

i~T~Y G~U5i1I~lG ROCK ~RI~LIhlG

In an ~?n-cut lr~n c~ ne t/tttt~n~; acs~rrJing ~o ~h~
inv~nti~r~ wer~ ~e~tE~ in rc~ r bits. T~e rD11~r bit~ we~re o~ t~- ~ype 1~ h totaL1y 2~ ~pheric~1 b~ t~ns~
~'h~ di il~m~er of ttle b~l~t~n~ w~ 14 mm on r~ l c mm row 4 Th~ 3d~ typ~5 of t~lttonsa I~ C t D an-~ e w~re ~i~d i n EX~ LE
2 ~ EX~Pt_~ 1 e~:cept ~hat l:he ~en~ te~ c~r~i de h~d ln ~fo c:ob21~ ~nd 9~:1 wfo WG an~ a h~rdn~ss of 1~0 ~V3.
Th~ ~.ele?s ir2 ~o ~u~tons wer~ m~de b~for~ ~he ~i ~ter lng o~
~h~ cemen~ed -~.rbid~.
Th~ dla~nond b~ie~ ~re sY~etri~l;v Placed accnr~in~ ~:o FIG.
Th~ per~:o~ncr ln ~rm of life tinte and pene4r-i~tion rat~
~;~5 m~a~ d. Th~ d-illinq dA~a ~Pre th~ ~10win~
~r~ g: 4 pc5 E~
r ~i;?ci press~ar~ 60C30 ~ 80QI:10 1 bS
R~l l 60 :' : ~ : .

' 5 '~ ~ B ' B ' B I U ~ U .`;.'I! I) \ ! K J LlR ~ ~-. G(lh L ~ J ~ U 1 t~ ~) 2 1 ~en ch .~ ght l ~i Hol ~ th 17 ~TI
F~Ocl: ~orm;~T.iOn ~r~n o~e I very ha~r-d r~:k 51_!L ~ S

TrPc ~ N~ of b~t5~ver.liSe ~y~ n~tl~Rtinn b~ cn m nl~'hr h ~F~5, Y.) 3 14~C~ 15 E ~Fr~ nl 1730 16 C tF~.5) 3 l~Q0 17 ~ ~ i G, ~ 400 23 E (rIG.73 ~ OG 2 ,

Claims (4)

1. Cemented carbide rock bit button for percussive and rotary crushing rock drilling provided with at least one polycrystalline diamond body.
2. Rock bit button according to claim 1 provided with one concentric polycrystalline diamond body on top of the button with a surface length of 10-50 % of the diameter of the button.
3. Rock bit button according to claim 1 provided with 2-5 polycrystalline bodies covering 10-50 % of the surface area of the button.
4. Rock bit button according to any of the preceding claims in which the cemented carbide has an eta-phase containing core.
CA002040589A 1990-04-19 1991-04-16 Diamond rock tools for percussive and rotary crushing rock drilling Abandoned CA2040589A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US511,096 1990-04-19
US07/511,096 US5154245A (en) 1990-04-19 1990-04-19 Diamond rock tools for percussive and rotary crushing rock drilling

Publications (1)

Publication Number Publication Date
CA2040589A1 true CA2040589A1 (en) 1991-10-20

Family

ID=24033448

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002040589A Abandoned CA2040589A1 (en) 1990-04-19 1991-04-16 Diamond rock tools for percussive and rotary crushing rock drilling

Country Status (11)

Country Link
US (1) US5154245A (en)
EP (1) EP0453426B1 (en)
JP (1) JPH06212874A (en)
AT (1) ATE135083T1 (en)
AU (1) AU645079B2 (en)
CA (1) CA2040589A1 (en)
DE (1) DE69117568T2 (en)
FI (1) FI911913A (en)
IE (1) IE73665B1 (en)
NO (1) NO911536L (en)
ZA (1) ZA912794B (en)

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NO911536L (en) 1991-10-21
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ZA912794B (en) 1992-01-29
EP0453426B1 (en) 1996-03-06
JPH06212874A (en) 1994-08-02
ATE135083T1 (en) 1996-03-15
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FI911913A (en) 1991-10-20
US5154245A (en) 1992-10-13

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