Rosin - kungcono izinto ezithakazelisayo kakhulu

Rosin - kuyinto amorphous into ziyaqothuka kokuba isakhiwo lwengilazi nombala ekukhanyeni yellow kuya kokubomvu amnyama. It is etholwe emva distilling off the ingxenye resin ka AmaConifers oluyingozi. izakhiwo Chemical ka rosin (90% resin acid, kuhlanganise eziyisisekelo - abietic) ukwenza kube zingaxazululeki emanzini kodwa oncibilikayo elithi ether, utshwala, chloroform futhi benzene. Lapho sishisiswe 50-120 C. (izinhlobo ezahlukene) rosin Amabha kuthiwa waqala ukuthamba.

Lalisho ukuthini igama elithi "rosin" Kuphi? Lokhu cishe uhlanekezelwe igama lomuzi wasendulo lapho esiGrekini isigcino, azungeze owakhula izihlahla ukunikeza into enjalo. Ezikhathini zasendulo (iminyaka engaphezu kwengu kwezinkulungwane ezintathu edlule) kusukela turpentine inhlaka okulungiselelwe amalahle a ezisalayo ezomile yiso bakudala rosin izidakamizwa.

Rosin - nesisekeli, ngaphandle okuyinto akunakwenzeka ukudlala, ezifana violin, viola, bass double, cello. Lapho bezihlikihla umnsalo ucezu yalolu ketshezi ukhiqiza amangqamuzana omoya khulula okuyinto ukunikeza adhesion ezithile intambo, kanjalo yokukhipha umsindo. rosin anjalo ngokuvamile akhiqiza ngendlela non-zezimboni, resin eqoqwe iwe kuphela ne ukwengeza izithako "imfihlo" ezithinta ngamunye umkhiqizo wabo (kungenziwa wanezela metal, isiliva noma ngisho uthuli igolide, njll). Ngaphezu kwalokho, rosin phambi wagcoba amathe ezemidlalo ngaphambi, isibonelo, wrestlers futhi bamakamela wabophela ngaphambi gxuma.

Rosin - ikhemikhali eyayisetshenziswa kabanzi futhi isicelo kule mboni. Ezikhathini zangaphambili, kwathiwa amangalelwe ukwenza insipho, ukukhiqizwa anamathelayo, uphawu wax. Namuhla izitimela nge rosin esetshenziselwa ukulungisa amashubhu ingilazi awenze cap womshini varnishes, ukunyatheliswa emsebenzini ku brazing izimboni, kanye embonini ephepheni. Futhi kuyo yonke indawo, kusebenza isici esiyinhloko - ikhono ukudala compounds okunamathelayo lapho sishiswa ngakho.

rosin ukukhiqizwa ngokuvamile ayikashintshi phezu zeminyaka. Ukuqala impahla (iziphunzi ngetiyela eqoqwe resin - oleoresin) ibekwe cubes, lapho iphathwa nge umusi noma evuthayo ngomlilo. Kusukela oleoresin Quintal etholwe mayelana 12 kg turpentine (distilled) kanye 70 kg we rosin, okuyinto abilisiwe ukususa uketshezi ibekwe ezitsheni. Uma imfuyo akhishwa isiqu, zingabantu pre-luthuli bese inhlanganisela chips namanzi is phansi yokuyigqula. Omunye imitha cubic izinkuni ukwazi ngetiyela mayelana amakhilogremu amane rosin.

Yiziphi amathuluzi main zokulawula ezisetshenziswa amabhizinisi akhiqiza rosin? № GOST 19113 - 84, ikakhulukazi, izidingo eziyisisekelo eziningana imikhiqizo kanye nemingcele ukukhiqizwa. Kusukela ke singafunda ukuthi yini kufanele kube ukuvela kusukela rosin, uyini ukuminyana eyamukelekayo, okuqukethwe amanzi, iphuzu ukuthambisa, inombolo acid, njll Le ncwadi ibonisa ukuhlobana izidingo zokuphepha yenqubo ukukhiqizwa (rosin -. Kuyinto ngokulinganisela izinto eziyingozi, njengoba aerosol kwalo kungase kubangele ubuhlungu), ukwamukela imithetho, izindlela ukuhlaziya kokuqendwa umkhiqizo, isitoreji kanye iwaranti imithetho.