Hurukuro pane yakajairwa "Pepa nebhodhi tensile simba kutsunga (Constant Speed ​​​​Loading Method)"

Tensile simba tester pasi pemamiriro ekugara achimhanyisa kurodha, iyo sampuli yehukuru hwakatarwa yakatambanudzwa kusvika pakutyoka, simba rekusimba rinoyerwa, uye iyo yakanyanya kureba pakutyoka inorekodhwa.

ⅠDefine

Tsanangudzo dzinotevera dzinotambirwa mune iyi International Standard.

1,Tensile simba

Iyo yakanyanya tension iyo bepa kana kadhibhodhi inogona kumira.

2. Kuputsa kureba

Upamhi hwepepa pachahwo huchaenderana nehutano hwepepa huchaputsika kana urefu hunodiwa. Iyo inoverengerwa yakawanda kubva pakusimba kwesimba uye hunyoro hunogara huripo hwemuenzaniso.

3.Tambanudza panguva yekuzorora

Kurebesa kwebepa kana bhodhi pasi pekumanikidzika kusvika pakutyoka, kunoratidzwa sechikamu chehurefu hwemuenzaniso wekutanga.

4, Tensile index

Simba rekusimba rinopatsanurwa nehuwandu hunoratidzwa mumamita eNewtons pagiramu.

Ⅱ Chiridzwa

Iyo tensile simba tester inofanirwa kushandiswa kuyedza kusimba kwesimba uye kurebesa kweiyo sampuli pane yakatemwa chiyero chekurodha. Tensile simba tester inosanganisira:

1. Kuyera uye kurekodha mudziyo

Iko kurongeka kwekusimba kwekuramba pakutyoka kunofanirwa kunge kuri 1%, uye kuverenga chaiko kwekurebesa kunofanirwa kuve 0.5mm. Iyo inobudirira yekuyera chiyero chetensile simba tester inofanira kuva pakati pe20% ne90% yehuwandu hwese. Cherechedza: kune bepa rine elongation isingasviki 2%, kana isina kururama kushandisa pendulum tester kuti uone kureba, inogara ichimhanyisa tester ine electronic amplifier uye rekodha inofanira kushandiswa.

2. Kugadziriswa kwekukurumidza kurodha

Ongorora: Kuti usangane nezvinodiwa kuti shanduko yekurodha chiyero haifanire kunge yakakura kupfuura 5%, iyo pendulum mhando chiridzwa haifanirwe kushandiswa pane pendulum Angle yakakura kupfuura 50 °.

3. Zvikamu zviviri zvemuenzaniso

Mienzaniso inofanira kusungirirwa pamwe chete muhupamhi hwayo uye haifaniri kutsvedza kana kukuvadza. Mutsetse wepakati wechibatiso unofanirwa kuve wecoaxial nepakati mutsara wemuenzaniso, uye kutungamira kwesimba rekurovera kunofanirwa kuve 1 ° yakatwasuka kune kureba kutungamira kwemuenzaniso. Nzvimbo kana mutsara wezvikamu zviviri izvi zvinofanira kuva 1 ° parallel.

4, maviri clip spacing

Chinhambwe chiri pakati pezvimedu zviviri chinogadziriswa uye chinofanirwa kugadziridzwa kune inodiwa bvunzo urefu kukosha, asi kukanganisa hakufanirwe kudarika 1.0 mm.

Ⅲ Kutora uye kugadzirira muenzaniso

1, Sample inofanira kutorwa zvinoenderana neGB/T 450.

2, 15 mm kubva kumucheto kwemuenzaniso, cheka nhamba yakakwana yemasampuli, kuti uone kuti pane gumi data rinoshanda mugwara rakamira uye rakachinjika. Iyo sampuli inofanira kunge isina zvikanganiso zvepepa zvinokanganisa simba.

Mativi maviri emuenzaniso akatwasuka, parallelism inofanira kunge iri mukati me 0.1mm, uye iyo incision inofanirwa kuve yakatsvinda pasina kukuvara. Cherechedza: paunenge uchicheka pepa rakapfava rakapfava, sampuli inogona kutorwa nepepa rakaoma.

3, Saizi yemuenzaniso

(1) Hupamhi hwemuenzaniso hunofanira kuva (15 + 0) mm, kana humwe hupamhi hunofanira kuratidzwa mumushumo wekuedza;

(2) Muenzaniso unofanirwa kunge wakareba zvakakwana kuti uone kuti sampuli haizobata sampuli pakati pezvikamu. Kazhinji hurefu hupfupi hwemuenzaniso ndeye 250 mm; Mapeji akanyorwa nemaoko erabhoritari achachekwa zvinoenderana nezviyero zvavo. Kurovera kureba panguva yekuyedzwa kunofanirwa kunge kuri 180 mm. Kana mamwe marefu ekumanikidza akashandiswa, inofanirwa kuratidzwa mumushumo webvunzo.

ⅣEdza matanho

1. Instrument calibration uye kugadzirisa

Isai chiridzwa maererano nerairo uye gadzirisa simba rekuyera nzira maererano neAppendix A. Kana zvichidiwa, iyo elongation yekuyera nzira inofanirawo kuenzaniswa. Rongedza kumhanya kwekurodha zvinoenderana ne5.2.

Gadzirisa mutoro wezvisungo kuitira kuti bvunzo tambo isatsvedza kana kukuvara panguva yebvunzo.

Huremu hwakakodzera hunosungirirwa kune clip uye huremu hunotyaira kurodha inoratidza mudziyo kurekodha kuverenga kwayo. Paunenge uchiongorora iyo inoratidza nzira, iyo inoratidza nzira haifanirwe kuve yakawandisa backbump, lag kana friction. Kana kukanganisa kuri kukuru kupfuura 1%, iyo yekururamisa curve inofanira kuitwa.

2, Kuyera

Iwo masampula akaedzwa pasi peyakajairwa mamiriro emuchadenga ekushisa uye humidity kurapwa. Tarisa zero uye kumberi uye kumashure nhanho yekuyera meshini uye yekurekodha mudziyo. Rongedza chinhambwe chiri pakati pezvisungo zvekumusoro nezasi, uye sunga sampuli mumachira kudzivirira kubata mawoko nenzvimbo yekuyedza pakati pezvisungo. Iyo pre-tension inosvika 98 mN(10g) inoiswa kune sampuli kuitira kuti inosungirirwa yakatwasuka pakati pezvimedu zviviri. Kurodha chiyero chekutyoka mu (20 ivhu 5) s yakaverengerwa nekufungidzira bvunzo. Simba guru rinoshandiswa rinofanira kunyorwa kubva pakutanga kwechiyero kusvikira muenzaniso waputsika. Elongation panguva yekuzorora inofanira kurekodhwa kana zvichidikanwa. Zvimedu zvemapepa nebhodhi zvingangoita gumi zvinofanirwa kuyerwa munzira imwe neimwe uye mhedzisiro yematsetse gumi ose anofanira kuve anoshanda. Kana iyo clamp yakaputsika mukati me10 mm, inofanira kuraswa.

ⅤZvakaverengwa

Mhedzisiro yacho yakaratidza kuti yakatwasuka uye yakachinjika mhedzisiro yepepa nekadhibhodhi yakaverengerwa uye yakamiririrwa zvakateerana, uye pakanga pasina mutsauko munzira yerabhoritari-yakakopwa nemaoko mapeji.

 

Zvinoenderana neyakajairwa "GB/T 453-2002 IDT ISO 1924-1: 1992 bepa uye bhodhi tensile simba kutsunga (nguva dzose yekumhanyisa kurodha nzira)" kambani yedu yakagadzira zvigadzirwa DRK101 yakatevedzana yemagetsi tensile yekuyedza muchina. Iine maitiro anotevera:

1, Iyo nzira yekutapurirana inotora bhora screw, kutapurirana kwakagadzikana uye kwakaringana; Yakatorwa kunze servo mota, yakaderera ruzha, kutonga kwakaringana.

2, Bata screen operation kuratidza, Chinese uye Chirungu kuchinjanisa menyu. Real-time kuratidza kwesimba-nguva, simba-deformation, simba-displacement, etc. Ikozvino software ine basa rekuratidza tensile curve munguva chaiyo. Chiridzwa chine simba data kuratidza, kuongorora uye manejimendi kugona.

3, Kushandiswa kwe24-bit high precision AD converter (resolution inosvika 1/10,000,000) uye high precision kuyera sensor, kuve nechokwadi chekumhanya uye kurongeka kwechiridzwa chinomanikidza kutora data.

4,Kushandiswa kwe modular thermal printer, kuisirwa nyore, kukanganisa kwakaderera.

*5

6, Yakakwira degree re otomatiki, dhizaini dhizaini inoshandisa midziyo yepamusoro kumba nekune dzimwe nyika, microcomputer yekunzwa ruzivo, kugadzirisa data uye kudzora chiito, ine otomatiki reset, ndangariro yedata, kudzivirira kwakawandisa uye kukanganisa kuzviongorora maitiro.

7, Multi-function, flexible configuration.

Tumira meseji yako kwatiri:

KUBVUNZA ZVINO
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Nguva yekutumira: Nov-03-2021
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