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1
ABSTRACTS
XinShaoje.DesignofbeamPump?ngunltfordualboreprodjetion.C CM,1993,21
(10):1B4,8
Theauthordeseribesthedesignfeaturesandworkingprineipleofthemlargeswingn
beampumpingunitfordualboreproduetion.Afteranalyzingtheforeeofloadontheeompo-
nentsandthetorqueonthepolishedrod,theauthoreonoludesthattèforeeofloadonthe
mainstrueturalmembersoftheaboveBmentionedunitaresmallerthanthatoftheeonven-
tionalunit,andeounterbalaneetorque15unneeessarywhenit15usedfortwinwellofequiva-
lentstatieloads.Theauthoralsopresentssomeeonsiderationsinthedesignofrheunit.
LeIT°j=n,WangWe?shan.Dev.loPmentofModelNCN50X20meroclone.§ Cé,1993,
21(10):5B8
ModelNCN50X20mieroeloneeomprisestwentyA50mmhydroelones,aeeomPanied
withinletmanifoldandoutletmanifoldandeharaeteri:edbynewdesignfeatureandnewma-
terial.Testsshowthat,underainletpressureof0.4MPa,th.mieroeloneeanelearaway
solidoofover7ómdiarneterwithatotaltreatingeapaeityofzogm3/h.Iteanmeettherequire-
mentsofdrillfluidsolideontrolandoilfieldsewagetreatment.
w.ngTongrul.Erfeetoftheteehnlealparameter.ofhlgh,rrequenmy-.duct ?onheatlng
0.+pbcb.nd gbg,,qualmty.C C?,1993,21(10):9B15
Theauthoranalyzesthefaetor,effeetingthehoatingtemperaturebyhéghB!r.qu§neyin-
duetionatingonapipeBbendingmaehine,expoundstherelationohipbetw?endriveforee
anddrive,peod,eoolingmodeandeoolingopeed,anddriveforeeandpi size,andpresents
thelimitingoperatingeondition,ofthepipeBbendingmaehineendt~emeasuresforensuring
piPeBbending,bquality.
Ch.nX?angx?.WelddefeetsofdrillpOPefr?et?onweldlng.C C?,1993,21(10):1mB21
Therasonsforthelowimpaettoughnessofthefrietioowoldedjointofdri!1pipe15that
themetallurgiealmiorostrueturoofthejointheatBtreotedaftorwolding15notidealandthere
aregrey,PotsandFeScMnSinetu,ionointheweldzone.ósedonteoto.theauthormakes
aninvestigationintotheshape,formationandharmoftheaboveBmentioneddefeetsandthe
Proeautionsegainstthem.
IluangDongsheng,ZhaoXuesheng,SongMengyu.Screentestsforobtaln?ngsupert19~
Hreng§hBuok.rrods.C C H,1993,21(10):22B27,36
AnelperimestalinvestigatYonintotheteehnologiealP;oeeosesfor20CrMosuPerbigh-
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