湘邮科技股吧2453(PT2453)

物联网龙头兄弟转债建信优选成长|大冷股份股票2021年4月28日发(作者：以后15点成交那个数据是什么意思?棕榈股份(002431))

FIG.1ToolforLevelingCaulkingCompoundintheShrinkageTestSpecimen
compoundforatleast5hat2362°C(73.463.6°F).
ureforShrinkageDetermination
9.1Placethebrassringononeoftheground-glassplates.
Determinethevolumeoftheringby?llingitwithdistilled
waterat2362°C(73.463.6°F),
thewaterslowlyfromtheburetintotheringsothatthereare
noairbubblesvisiblewhentheglasscoverplateiscenteredon
theamountofwaterrequiredto?llthe
ringtothenearest0.03mL,asV
r
.
a6-mm
1
(?
4
-in.)layerofcompoundinthering,usingthelevelingtool
toformgoodcontactwithringandstone(Fig.1).Theleveling
toolshould?t?rmlyagainsttheinsidesurfaceoftheringwhile
stilledwaterfromtheburetintothe
ringuntilitisexactly?lled(withoutairbubbles),asdeter-
minedbycoveringwithaground-glassplate(Fig.2).Record
thequantityofwaterneededto?llthering(readingtheburet
toanaccuracyof0.03mL)anddesignatetheamountasV
i
.
9.3Pouroutthewaterfromtheringandplacethespecimen,
atthesamelevelasthetemperaturemeasuringdevice,inan
ovensetat6562°C(14963.6°F)ndofthis
exposureperiodandafterthespecimenhascooledfor2hat
roomtemperature,repeatthe?llingoftheringusingtheburet
andrecordthevolumeofwaterusedasV
f
.
ation
10.1Calculatetheshrinkage,involumepercent,asfollows:
Shrinkage,%5
@~
V
f
2V
i
!

~
V
r
2V
i
!600246股票行情#
3100(1)
where:
V
r
5volumeofring,mL,
V
f
5volumeofwaterrequiredto?llringafter120h
exposure,and
V
i
5volumeofwaterrequiredto?llringbeforeoven
exposure.
ureforTenacityDetermination
11.1Aftertheshrinkagedeterminationhasbeencompleted,
runthepointoftheknifebladealongtheinsideedgeofthering
e
stiffputtyknife,loosenonehalfofthecaulkingpatfromthe
heputtyknifeundertheloosenedportionofthe
compoundandfoldover180°ontotheremainingpartofthe
compound,returntotheoriginalposition,andrepeatthe
operationuntilsixfoldshavebeenmadealongthesameline.
Embrittlementorlackoftenacityisindicatedbybreakingor
crackingofthecaulkinglayeratthecrease.

12.1Shrinkage—Reportthepercentofvolumeshrinkage.
12.2Tenacity—Reportaspassorfail;passagerequiresa
minimumofsixfolds.
ionandBias
13.1Shrinkage—Onthebasisofaroundrobininwhich
FIG.2StagesintheShrinkageTestProcedure

eightlaboratoriestestedtwosamples,the“between-
laboratories”standarddeviationoftheamountofshrinkage,
expressedinpercent,byvolume,
onthisvalueofthestandarddeviation,thefollowingcriteria
shouldbeusedforjudgingtheacceptabilityofresultsatthe
95%con?dencelevel:
13.1.1Repeatability—Nodataatthepresenttime.
13.1.2Reproducibility—Tworesultsobtainedbyoperators
indifferentlaboratoriesshouldbeconsideredsuspectifthey
differbymorethan3.8percentagepoints.
13.2Tenacity:
13.2.1Onthebasisofaroundrobininwhicheight
laboratoriestestedtwosamplesina“pass-fail”test,therewas
aunanimousagreementamongalltheparticipantlaboratories
onthetwosamplestested.
13.2.2Repeatability—Nodataatthepresenttime.
ds
诚浩证券14.1caulkingcompound;?exibility;shrinkage
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开始用起来没什么，越向后，就越不稳定？ 后来在大比武上，秦振华让牛世龙出了大丑，整个工厂都知道他不懂技术了，还好，他能坚持住，但是现在，秦振华在大领导前面暴露了整个工厂领导层的问题，处理职工事故上的失误，是牛世龙绝对不能容忍的。 “各位，告诉大家一个好消息，上级部门，经过慎重讨论，决定再给我们厂，增加两个出国的名额。”马盼山在说这话的时候，脸上的喜悦溢于言表。 虽然说起坦克炮来，英国的L7坦克炮那是鼎鼎大名，北约标准制式，但是，要说到坦克整体，德国绝对是世界第一的。