Rosin - yana da ban sha'awa sosai stuff

Rosin - shi ne amorphous, gaggautsa abu da ciwon idon yayi kamar gilashi tsarin da kuma launi daga haske rawaya zuwa duhu ja. An samu bayan kason kashe da maras tabbas bangaren na guduro na conifers. Chemical Properties na rosin (90% guduro acid, ciki har da na asali - abietic) sa shi insoluble a ruwa amma narkewa a ether, barasa, chloroform da benzene. Lokacin da ya kona wa 50-120 C. (for daban-daban iri) rosin sanduna suna tausasa.

Inda ya yi da kalmar "rosin"? Wannan ne mafi kusantar gurbata sunan tsoho Greek birnin Colophon, a kusa da wanda ya yi girma itatuwa da cewa ba irin wannan abu. A zamanin da (fiye da dubu uku da suka wuce) daga turpentine resins shirya ta gasa a bushe saura daidai ne m rosin abu.

Rosin - wani m, ba tare da wanda ba shi yiwuwa a yi wasa, irin su goge, Viola, biyu bass, cello. Lokacin shafa baka yanki na wannan abu samar free kwayoyin wanda ba wani mannewa da kirtani, game da shi, extracting sauti. Irin wannan rosin sau da yawa nuna ba-masana'antu iri, guduro tattara kawai fada da Bugu da kari na "asiri" sinadaran wanda da kowane su iri (za a iya kara karfe, azurfa ko zinariya kura, da dai sauransu). Bugu da kari, da rosin kafin shafa da tafin wasanni kafin, misali, 'yan kokawa da jockeys sirdi kafin Jump.

Rosin - wani abu da aka yi amfani da ko'ina da kuma amfani da a cikin masana'antar. A baya sau, shi aka da'awar a sabulu-yin, samar da adhesives, sealing kakin zuma. Yau jiragen kasa da rosin amfani ga kayyade gilashin shambura zuwa dokoki hula domin yi na varnishes, bugu a wurin aiki a kan brazing masana'antu, kazalika a cikin takarda masana'antu. Kuma a ko'ina, shi ya shafi babban alama - da ikon haifar da m mahadi a lokacin tsanani da.

rosin samarwa a general ya canza ba a kan millennia. An fara abu (tarred kututture tattara guduro - oleoresin) aka sanya shi a cikin cubes, inda aka bi da tare da tururi ko mai tsanani a kan wuta. Daga quintal oleoresin samu game da 12 kg of turpentine (distilled) da kuma 70 kg na wani rosin, wanda aka Boiled cire ruwa da kuma sanya a cikin kwantena. Idan abu ne cirewa daga dungu, su ne pre-niƙa, sa'an nan kuma a cakuda da kwakwalwan kwamfuta, da kuma ruwa ne hõre hakar tsari. Daya cubic mita na itace iya samun tarred game da arba'in kilo rosin.

Menene babban tsara kida ana amfani da kamfanonin da cewa samar da rosin? № Gost 19113 - 84, musamman, da bukatu ga yawan kayayyakin da kuma samar da sigogi. Daga shi za mu iya koya abin da ya kamata a bayyanar daga rosin, abin da yake da m yawa, ruwa da abun ciki, da softening nufi, acid lambar, da dai sauransu The daftarin aiki kuma nuna ga tsaro da bukatun na samar da tsari (rosin -. Shi ne moderately m abu, tun ta aerosol iya sa hangula), yarda da dokoki, da hanyoyin da bincike na ƙãre samfurin, ajiya da kuma garanti dokoki.