Muaj ntau ntau yam ntawm cov yas, tab sis lawv txhua tus muab faib ua ob pawg: thermoplastics thiab thermoplastics.
Yog li ntawd, txhawm rau kho cov khoom yas zoo, koj yuav tsum paub tias lawv yog cov yas dab tsi, qhov no yuav pab txiav txim siab seb cov kua nplaum twg los ua cov yas ntawm ib pawg twg. Tom qab tag nrho, txawm nyob rau hauv no seemingly yooj yim teeb meem muaj tricks. Yog li, piv txwv li, cov khoom ua si yas tuaj yeem kho tau siv cov khoom siv sib xyaw ua ke, tab sis rau cov tshuaj txhuam hniav carbalite nws yog qhov zoo dua los siv BF-2 yas kua nplaum.
Kuv thov kom xav txog ob pawg hauv kev nthuav dav ntxiv txhawm rau nkag siab txhua qhov subtleties ntawm gluing cais qhov chaw.
Kho thiab sib txuas cov thermoplastics
Cov khoom ua los ntawm cov yas hom no tsis tuaj yeem muag, yaj thiab rov ua dua, thiab yog tias ib yam khoom tawg lawm, ces nws tsuas yog muab khi ua ke. Cov tais diav, cov hub tshuaj tsw qab, cov nyees khawm, vaj tse rau cov xov tooj thiab cov koob yees duab, cov ntsaws ruaj ruaj yog tsim los ntawm cov yas zoo li no.qhov (sockets) thiab plugs. Tag nrho cov khoom uas tau teev tseg tau yooj yim tawg lossis tawg thaum poob, thiab kho lawv koj yuav xav tau BF-2 thiab BF-4 yas kua nplaum, nrog rau nitrocellulose, polyvinyl chloride thiab polyvinyl acetate adhesives.
Gluing yog ua tiav hauv ntau theem:
- Kink tau ntxuav kom huv ntawm cov plua plav thiab av, thiab yuav tsum tau degreased. Ua li no, nws yog qhov zoo dua los ntxuav qhov tawg nrog dej kub thiab xab npum.
- Ib txheej nyias ntawm cov kua nplaum yog siv los ua tib zoo qhuav qhov chaw thiab ziab kom tsis txhob lo rau cov ntiv tes.
- Cov txheej thib ob ntawm cov kua nplaum kuj tseem siv rau ob qho tib si thiab tuav rau 1-2 feeb, tom qab ntawd cov khoom sib xyaw ua ke thiab muab tso rau hauv qab xovxwm.
- Cov txheej txheem ziab yuav kav 3-4 hnub.
Kho thiab sib txuas ntawm cov thermoplastics
Plastics ntawm pawg thermoplastic tau yooj yim softened los ntawm qhov kub thiab txias thiab tuaj yeem yaj nyob rau hauv kev cuam tshuam ntawm qee cov kuab tshuaj. Cov yas zoo li no yog siv los tsim cov cwj mem sau ntawv, xab npum tais diav, combs, tsom iav qhov muag thiab cov khoom ua si menyuam yaus. Yav dhau los, tag nrho cov khoom no tau ua los ntawm cov yas celluloid combustible, tab sis tam sim no nws tau nce ntxiv los ntawm cov tsis-flammable cellulose acetate. Ob lub plastics yaj zoo hauv acetone. Cov kua nplaum rau hom yas no tuaj yeem ua rau nws tus kheej, rau qhov no koj yuav xav tau cov kuab tshuaj (2 ntu) thiab celluloid sawdust (1 feem) ua raws li cov khoom xav tau ntawm cov yas. Cov khoom xyaw yog tov thiab khaws cia rau hauv ib lub thawv nrog lub hau nruj.
KawCov thermoplastics txawv ntawm cov thermoplastics, nws tuaj yeem pom tau ntau txoj hauv kev:
1 way
Split qhov chaw yog lubricated nrog cov kuab tshuaj ua yeeb yam ntawm cov yas no thiab tos kom txog thaum cov npoo ntawm qhov sib cais ua nplaum, tom qab ntawd cov khoom raug muab tais thiab muab tso rau hauv ib lub xovxwm kom txog rau thaum cov tawv tawv tag.
2 way
Rau gluing siv nitrocellulose kua nplaum rau yas hom "Mars", "Ts-1" thiab "MTs-1".
3 way
Cov npoo uas yuav tsum tau nplaum yog rhuab tshaj qhov hluav taws kub lossis cov hlau kub yog siv rau lawv, tom qab ntawd cov npoo muag ntawm cov khoom tau koom nrog. Thaum cua sov, nws yog ib qho tsim nyog los tiv thaiv kev kub hnyiab kom cov seam tsis tsaus.
Yog li, txhawm rau txhawm rau kho qhov khoom siv tau ntev thiab tsis poob nws qhov tsos, koj yuav tsum xaiv cov kua nplaum zoo tshaj plaws rau hom yas no. Tom qab tag nrho, tsuas yog cov kua nplaum zoo yuav ua kom muaj kev sib raug zoo.
