Chitsanzo cha 100 mm m'litali chinadulidwa kuchokera kumalo aliwonse a chitoliro chamoto chophimbidwa ndi pulasitiki, ndipo kuyesa kwake kunachitika malinga ndi zomwe zili mu Table 2 pa kutentha kwa (20 ± 5) ℃ kuona kuwonongeka kwa zokutira zamkati.Pakuyesa, kuwotcherera kudzakhala kosiyana ndi momwe zimachitikira, ndipo zotsatira zoyeserera zimagwirizana ndi zomwe 5.9.
Zoyeserera zoyeserera
DN
Mm nyundo kulemera, kg kugwa kutalika, mm
15-251.0300
32 ~ 502.1500
65
80 ~ 3006.31000
Mayeso a vacuum
Kutalika kwa gawo la chitoliro ndi (500±50) mm.Gwiritsani ntchito njira zoyenera kuti mutseke polowera ndi kutuluka kwa chitoliro, ndipo pang'onopang'ono muwonjezere kupanikizika koipa kuchokera ku 660 mm hg, sungani 1 min.Pambuyo pa mayeso, yang'anani chophimba chamkati, ndipo zotsatira za mayeso ziyenera kutsata zomwe zili mu 5.10.
Kuyeza kutentha kwakukulu
Kutalika kwa chigawo cha chitoliro cha chitsanzo chinali (100±10) mm.Chitsanzocho chinayikidwa mu chofungatira ndikutenthedwa mpaka (300±5) ℃ kwa 1 h.Kenako anachotsedwa ndi utakhazikika mwachibadwa kutentha yachibadwa.Pambuyo pa mayeso, tulutsani chitsanzocho ndikuyang'ana chophimba chamkati (mawonekedwe akuda ndi akuda amaloledwa), ndipo zotsatira zoyesa ziyenera kutsata 5.11.
Pressure cycle test
Kutalika kwa gawo la chitoliro cha chitsanzo chinali (500±50) mm.Njira zoyenerera zinagwiritsidwa ntchito kuti zitseke polowera ndi kutuluka kwa chitoliro, ndipo chitolirocho chinalumikizidwa ndi dongosolo loperekera madzi.Madzi anadzazidwa kuti achotse mpweya, ndiyeno 3000 alternating hydrostatic tests from (0.4±0.1) MPa to MPa inachitika, ndipo nthawi ya mayeso aliwonse sanali oposa 2 s.Pambuyo pa kuyesedwa, chophimba chamkati chidzayang'aniridwa ndipo kuyesa kwa adhesion kudzachitidwa molingana ndi zomwe zili 6.4, ndipo zotsatira za mayesero zidzagwirizana ndi zomwe 5.13.
Kuyesa kwanyengo ya kutentha
Kutalika kwa gawo la chitoliro cha chitsanzo chinali (500±50) mm.Zitsanzozo zinayikidwa kwa 24 h pa kutentha kulikonse motere:
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃.
Pambuyo pa mayeso, chitsanzocho chinayikidwa pamalo otentha (20 ± 5) ℃ kwa 24 h.Chophimba chamkati chinafufuzidwa ndipo kuyesa kumamatira kunachitika molingana ndi zomwe 6.4.Zotsatira za mayeso ziyenera kugwirizana ndi zomwe zili pa 5.14.
Mayeso okalamba amadzi ofunda
Kukula ndi kutalika kwa gawo la chitoliro lachitsanzo ndi pafupifupi 100 mm.Ziwalo zowonekera pamapeto onse a chitoliro ziyenera kuthandizidwa ndi anticorrosion.Gawo la chitoliro liyenera kuviikidwa m'madzi osungunuka pa (70±2) ℃ kwa masiku 30.
Mawonekedwe owonetsera mwachidule kuwulutsa
(1) Makina apamwamba kwambiri.Utomoni wa epoxy umakhala ndi mgwirizano wamphamvu komanso mawonekedwe ake ophatikizika, motero mawonekedwe ake amakina ndi apamwamba kuposa utomoni wa phenolic ndi poliyesitala wosakanizidwa ndi utomoni wina wachilengedwe chonse wa thermosetting.
(2) Pulasitiki moto chitoliro ❖ kuyanika ntchito epoxy utomoni, ndi zomatira mwamphamvu.Dongosolo lamachiritso la epoxy resin lili ndi gulu logwira ntchito la epoxide, gulu la hydroxyl, chomangira cha ether, chomangira cha amine, chomangira cha ester ndi magulu ena a polar, zomwe zimapatsa epoxy zochiritsira zomatira bwino kuzitsulo, ceramic, galasi, konkire, matabwa ndi magawo ena a polar. .
(3) kuchiritsa shrinkage mlingo ndi kochepa.Nthawi zambiri 1% ~ 2%.Ndi imodzi mwa mitundu yomwe ili ndi shrinkage yaying'ono yochiritsa mu thermosetting resin (phenolic resin ndi 8% ~ 10%; unsaturated polyester resin ndi 4% ~ 6%; Silicone resin 4% ~ 8%).Liniya kukulitsa koyenera ndi kochepa kwambiri, nthawi zambiri 6 × 10-5 / ℃.Chifukwa chake voliyumu imasintha pang'ono pambuyo pochiritsa.
(4) Ukadaulo wabwino.Kuchiritsa kwa epoxy resin kwenikweni sikutulutsa kusinthasintha kwa maselo, kotero kumatha kukhala kutsika kwamphamvu kwapang'onopang'ono kapena kulumikiza kukanikizira.Ikhoza kugwirizana ndi mitundu yonse ya mankhwala ochiritsira kuti apange zosungunulira zopanda zosungunulira, zolimba kwambiri, zokutira za ufa ndi zokutira zotengera madzi ndi zokutira zina zokomera chilengedwe.
(5) Kusungunula kwabwino kwamagetsi.Epoxy utomoni ndi thermosetting utomoni ndi zabwino antistatic katundu.
(6) Kukhazikika kwabwino, kukana kwambiri kwa mankhwala.Epoxy resin popanda alkali, mchere ndi zonyansa zina sizovuta kuwonongeka.Malingana ngati ikusungidwa bwino (yosindikizidwa, yosakhudzidwa ndi chinyezi, osati kutentha kwakukulu), nthawi yake yosungiramo ndi 1 chaka.Itha kugwiritsidwabe ntchito ngati ili yoyenera ikatha.Zida zochiritsidwa ndi epoxy zili ndi kukhazikika kwa mankhwala.Kukana kwake kwa dzimbiri kwa alkali, asidi, mchere ndi zina zambiri kuposa unsaturated polyester resin, phenolic resin ndi zina thermosetting resin.Chifukwa chake, utomoni wa epoxy umagwiritsidwa ntchito kwambiri ngati anticorrosive primer, ndipo chifukwa epoxy resin kuchiritsa zinthu ndi mawonekedwe amitundu itatu, ndipo imatha kupirira kulowetsedwa kwamafuta, etc., kuchuluka kwa ntchito mu thanki yamafuta, tanker yamafuta, ndege, m'kati mwa khoma la thanki lonse.
(7) Epoxy kuchiritsa kutentha kukana nthawi zambiri 80 ~ 100 ℃.Mitundu yolimbana ndi kutentha kwa epoxy resin imatha kufika 200 ℃ kapena kupitilira apo.
Ubwino wa mankhwala
(1) TACHIMATA pulasitiki zitsulo chitoliro ali mkulu mawotchi mphamvu, oyenera chilengedwe ntchito mwankhanza;
(2) Kupaka mkati ndi kunja kungalepheretse kutsekemera kwachitsulo ndipo kumakhala ndi kukana kwa dzimbiri kwa mankhwala;
(3) ❖ kuyanika ali amphamvu zomatira, mkulu kugwirizana mphamvu ndi kukana zabwino amakhudza;
(4) Low roughness coefficient ndi mikangano coefficient, kukana kwambiri kwa thupi adhesion;
(5) Chitoliro chachitsulo chophimbidwa ndi anti-kukalamba ndipo chimakhala ndi moyo wautali wautumiki, makamaka woyenera kuperekera madzi apansi panthaka.
Nthawi yotumiza: May-23-2022