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Nigute ushobora gupima sima?

1, icyitegererezo

Isima nini igomba guterwa mubitwara sima mbere yo kugaburira muri silo. Kuri sima yuzuye imifuka, icyitegererezo kigomba gukoreshwa mugupima imifuka itari munsi ya 10 ya sima. Mugihe cyo gutoranya, sima igomba gupimwa muburyo bugaragara kugirango igabanuke. Ku mifuka ya sima, imifuka 10 igomba gutoranywa kugirango ipime kandi ibare uburemere buringaniye kuri burihagera.

2. Ibizamini

Ubushyuhe bwa laboratoire ni 20 ± 2 ℃, ubuhehere bugereranije ntibugomba kuba munsi ya 50%; Ubushyuhe bw'icyitegererezo cya sima, kuvanga amazi, ibikoresho nibikoresho bigomba kuba bihuye nibya laboratoire;

Ubushyuhe bw'agasanduku gakiza ni 20 ± 1 ℃, kandi ubushuhe bugereranije ntiburi munsi ya 90%.

3. Kugena imikoreshereze y’amazi kugirango ihame risanzwe GB / T1346-2001

3.1 Ibikoresho nibikoresho: kuvanga sima ivanga, ibikoresho bya vica

3.2 Wandike ibikoresho nibikoresho hamwe nigitambaro gitose, upima 500g ya sima, uyisuke mumazi muri 5 ~ 10s, utangire kuvanga, umuvuduko muke uvanga 120, uhagarare kuri 15, hanyuma umuvuduko mwinshi uvanga 120 uhagarare.

3.3 Intambwe yo gupima:

Nyuma yo kuvanga, hita uvanga urushundura rwiza rwa sima muburyo bwikizamini rwashyizwe kumasahani yo munsi yikirahure, shyiramo hanyuma ukubite icyuma, uhindurwe buhoro buhoro inshuro nyinshi, ukureho inshundura zirenze urugero; Nyuma yo kuringaniza, ibizamini byikizamini hamwe nisahani yo hepfo bimurirwa mubikoresho bya veka, kandi hagati yacyo hashyizweho munsi yikizamini, kandi ikizamini cyo kumanura kugeza igihe gihuriye nubuso bwa sima. Nyuma yo kwizirika imigozi ya 1s ~ 2s, iraruhuka gitunguranye, kuburyo umurongo wikizamini urohama uhagaritse kandi mwisanzure muri sima net. Andika intera iri hagati yikizamini hamwe nisahani yo hepfo mugihe ikizamini cyikizamini gihagaritse kurohama cyangwa kurekura ikizamini cyamasegonda 30. Igikorwa cyose kigomba kurangira muminota 1.5. Ihame risanzwe rya sima ni sima ya sima yarohamye mu nkoni yikizamini na 6 ± 1mm ​​uvuye ku isahani yo hasi. Ingano y'amazi akoreshwa mu kuvanga ni ihame risanzwe rya sima (P), ubarwa nkijanisha rya misa ya sima.

4. Kugena igihe cyo gushyiraho GB / T1346-2001

Gutegura icyitegererezo: ururondogoro rusanzwe rusanzwe rwakozwe mumazi hamwe nuburinganire busanzwe rwujujwe icyarimwe mugihe cyikizamini, gisibanganya nyuma yinshuro nyinshi zinyeganyega, hanyuma gihita gishyirwa mubisanduku bikiza. Andika igihe sima yongewe kumazi nkigihe cyo gutangira cyo gushiraho igihe.

Kugena igihe cyambere cyo gushiraho: ingero zarakize mumasanduku yo gukiza amazi kugeza 30min nyuma yo kongeramo amazi kunshuro yambere. Iyo urushinge rwo kwipimisha rwiroha munsi ya 4 ± 1mm, sima igera kumiterere yambere; Igihe cyo kongeramo sima mumazi kugeza kugihe cyambere cyo gushiraho nigihe cyambere cyo gushiraho sima, cyerekanwe muri "min".

Kugena igihe cyanyuma cyo gushiraho: nyuma yo kugena igihe cyambere cyo gushiraho, hita ukuramo icyitegererezo hamwe nigituba kiva mubirahuri ukoresheje ibisobanuro, hanyuma ubihindure 180 °. Diameter yimpera nini, impera ntoya ku isahani yikirahure, ongeramo agasanduku ko gukiza amazi kugirango ubungabunge, hafi yigihe cyagenwe cyagenwe rimwe muminota 15, mugihe ugerageza inshinge mumubiri wa mm 0,5, aribyo kwizirika impeta byatangiye kudashobora gusiga ikimenyetso. gerageza umubiri, ugere kumurongo wanyuma wa sima, sima ongeramo amazi kugeza igihe cyigihe cyagenwe cyanyuma cyo gushiraho igihe cya nyuma cya sima, Agaciro ni min.

Hagomba kwitonderwa umwiyemezo, muguhitamo kwambere kwibikorwa bigomba gushyigikira buhoro buhoro inkingi yicyuma, kugirango bigabanuke gahoro gahoro, kugirango hirindwe urushinge rwo kugeragezwa, ariko ibisubizo ni kugwa kubusa bizatsinda; Mugihe cyibizamini byose, umwanya wo kurohama urushinge ugomba kuba byibura 10mm uvuye kurukuta rwimbere rwububiko. Mugihe igenamigambi ryambere riri hafi, rigomba gupimwa buri 5min, kandi mugihe cyanyuma cyo gushiraho kiri hafi, igomba gupimwa buri 15min. Iyo igenamiterere ryambere cyangwa igenamiterere rya nyuma rigeze, bigomba kongera gupimwa ako kanya. Iyo imyanzuro yombi ari imwe, irashobora kugenwa nko kugera kumurongo wambere cyangwa imiterere yanyuma. Buri kizamini ntigishobora kureka urushinge rugwa muri pinhole yumwimerere, inzira yose yikizamini kugirango wirinde kunyeganyega.

5. Kugena ituze GB / T1346-2001

Ibishushanyo mbonera: shyira clip ya Reisler yateguwe ku isahani y’amavuta make, hanyuma uhite wuzuza ibipimo byateguwe bihoraho bisukuye hamwe na Reisler inshuro imwe, shyiramo kandi ubihindure inshuro nyinshi ukoresheje icyuma kigera kuri 10mm z'ubugari, hanyuma uhanagure neza, upfundike gato gusiga amavuta ikirahure, hanyuma uhite wimura icyitegererezo mumasanduku yo gukiza ya 24 ± 2h.

Kuraho isahani yikirahure hanyuma ukureho urugero. Banza upime intera iri hagati yerekana inama ya clamp ya Reefer (A), neza kuri 0.5mm. Shira ingero zombi kumurongo wikizamini mumazi abira hamwe nigitekerezo kireba hejuru, hanyuma ubishyuhe kubira muri 30 ± 5min hanyuma ukomeze kubira 180 ± 5min.

Ivangura rishingiye ku gisubizo: Nyuma yo gutekwa, reka amazi mu gasanduku, nyuma yisanduku ikonje kugeza ubushyuhe bwicyumba, fata urugero rwo gupima, intera yerekana (C), neza na 0.5mm. Iyo impuzandengo yagaciro yintera yiyongereye (CA) hagati yingero zombi zitarenze 5.0mm, bifatwa ko ituze rya sima ryujuje ibisabwa. Iyo itandukaniro ryagaciro ka (CA) hagati yingero zombi zirenze 4.0mm, icyitegererezo kimwe kizahita gisubirwamo. Muri iki kibazo, ituze rya sima rifatwa nkutujuje ibyangombwa.

6, sima ya minisiteri yuburyo bwo gupima GB / T17671-1999 

Ikigereranyo cyo kuvanga

Ubwiza buvanze bwa minisiteri bugomba kuba igice kimwe cya sima, ibice bitatu byumucanga bisanzwe nigice cyamazi (igipimo cya sima y'amazi 0.5). Isima ya beto 450g, 1350g umucanga usanzwe, amazi 225 g. Uburinganire bwuzuye bugomba kuba ± 1g.

6.2 kubyutsa

Buri nkono yumucanga wa kole ikururwa na blender. Shyira mixer muburyo bwakazi, hanyuma ukurikize inzira ikurikira: ongeramo amazi mumasafuriya, hanyuma ushyiremo sima, shyira inkono kuri nyirayo, uzamuke kumwanya uhamye. Noneho tangira imashini, umuvuduko muke uvanga 30s, 30s ya kabiri yatangiye icyarimwe kugirango yongereho umusenyi, uhindure imashini kumuvuduko mwinshi uvanga 30, ureke kuvanga 90, hanyuma umuvuduko mwinshi uvanga 60, yose hamwe 240.

6.3 Gutegura ingero

Ingano yikigereranyo igomba kuba 40mm × 40mm × 160mm prism.

Gukora hamwe nameza yinyeganyeza

Ako kanya nyuma yo gutegura ifumbire ya minisiteri, hamwe n'ikiyiko gikwiye kiva mu nkono ikurura bizagabanywamo ibice bibiri bya minisiteri mu gipimo cyo kwipimisha, igice cya mbere, buri tanki igera kuri 300g minisiteri, hamwe n'ikigero kinini kigaburira hejuru. igipfundikizo cyibumba hejuru yikigereranyo cyikizamini kuri buri cyuma inyuma ninyuma iyo igikoresho kibibwe neza, hanyuma kunyeganyega inshuro 60. Noneho fungura igice cya kabiri cya minisiteri, ubibe neza hamwe na federasiyo ntoya, hanyuma unyeganyeze inshuro 60. Hamwe numuyobozi wicyuma kugeza kuri 90 ° Ikadiri yinguni hejuru yikigero cyibizamini, hanyuma ukerekeza ku burebure bwerekezo bwikigereranyo hamwe nigikorwa cyo kureba buhoro buhoro kugeza kurundi ruhande rwimikorere, birenze igice cyibizamini bya gusiba umucanga, hamwe numutegetsi umwe kugirango ugereranye hafi yumubiri wikizamini.

6.4 Gukiza ingero

Ikimenyetso cyibizamini bizashyirwa mubisanduku bisanzwe byo gukiza sima, bigabanuka hagati ya 20-24h. Ikimenyetso cyerekanwe gihita gishyirwa mu buryo butambitse cyangwa gihagaritse mumazi kuri 20 ℃ ± 1 ℃ kugirango kibungabunge, kandi indege isakara igomba kuba hejuru iyo ishyizwe mu buryo butambitse.

6.5 Komeza imbaraga zo gusuzuma no gusuzuma

Ikigeragezo cyingufu:

Imbaraga za flexural zapimwe nuburyo bwo gupakira hagati hamwe na mashini yo gupima imbaraga. Ikizamini cyo kwikuramo cyakozwe kuri prism yamenetse uyishyira mugupima imbaraga zo kwikuramo. Ubuso bwo kwikuramo bwari impande ebyiri zumubiri wikizamini igihe cyashingwaga, gifite ubuso bwa 40mm × 40mm. (Gusoma byanditswe kuri 0.1mpa)

Imbaraga zihindagurika ni ugusoma mu buryo butaziguye imashini yipimisha, igice (MPa)

Imbaraga zo guhonyora Rc (neza kuri 0.1mpa) Rc = FC / A.

Umutwaro ntarengwa wananiwe Fc—-,

A—- Agace ko kwikuramo, mm2 (40mm × 40mm = 1600mm2)

Isuzuma ryimbaraga zoroshye:

Impuzandengo yagaciro yo guhangana ningingo ya prismes eshatu ifatwa nkibisubizo byubushakashatsi. Iyo imbaraga eshatu zingirakamaro zirenze igipimo mpuzandengo cya ± 10%, impuzandengo igomba gukurwaho nkibisubizo byimbaraga zipimishije.

Isuzumabushobozi ryimbaraga: isuzuma ryimibare yimibare itandatu yimbaraga zingirakamaro zabonetse kumurongo wa prism eshatu nigisubizo cyibizamini. Niba imwe muri esheshatu zapimwe zirenze ± 10% bya bitandatu bisobanura agaciro, ibisubizo bigomba kuvaho naho bitanu bisigaye bivuze agaciro. Niba byinshi mubintu bitanu byapimwe birenze ibyo bivuze ± 10%, ibisubizo bizateshwa agaciro.

7, uburyo bwo gupima neza (80μm uburyo bwo gusesengura) GB1345-2005

7.1 Igikoresho: ecran ya 80μm yikizamini, igikoresho cyo gusesengura igitutu kibi, kuringaniza (agaciro kagabanijwe ntabwo karenze 0.05g)

7.2 Uburyo bwo kwipimisha: gupima sima 25g, ubishyire mumashanyarazi mabi, upfundikire igifuniko cya shitingi, ubishyire kumashanyarazi, uhindure umuvuduko mubi kugeza kuri 4000 ~ 6000Pa. Mugihe cyo gusuzuma isesengura, niba hari umugereka wa ecran ya ecran, urashobora gukomanga witonze, kugirango sample igwe, nyuma yo kwerekana, koresha umunzani kugirango upime ibisigaye bya ecran.

7.3 Kubara Ibisubizo Ijanisha risigaye rya sima ntangarugero ya sima ibarwa kuburyo bukurikira:

F ni RS / W inshuro 100

Aho: F - gushungura ijanisha risigaye rya sima ntangarugero,%;

RS - Mass ya ecran ya sima isigaye, G;

W - misa y'icyitegererezo cya sima, G.

Ibisubizo bibarwa kugeza 0.1%.

Buri cyitegererezo kigomba gupimwa kandi ibyitegererezo bibiri bigomba kugenzurwa ukwabyo, kandi impuzandengo yikigereranyo gisigaye izafatwa nkigisubizo cyo gusuzuma. Niba ikosa ryuzuye ryibisubizo byombi birenze 0.5% (niba igenzura risigaye rifite agaciro karenze 5.0%, rirashobora gushirwa kuri 1.0%), ikindi kizamini kigomba gukorwa, hamwe nubusobanuro bwibisobanuro byibisubizo bibiri bisa bigomba gufatwa nkibisubizo byanyuma.

8, umweru wa sima yera

Iyo icyitegererezo, umweru wa sima nibara bigomba gupimwa muburyo bugereranijwe no kugereranya nicyitegererezo cyera.


Igihe cyo kohereza: Ukuboza-06-2021
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