Rosin - zviri zvinhu zvikuru

Rosin - iri amorphous, pfava fuma ane rinoonekera marongerwo uye ruvara kubva chiedza yero kune rima dzvuku. It inotengwa pashure distilling vakagura yainge chezvinonhuwira pamusoro nebwe pakati Conifers. Chemical ehupfumi kuti rosin (90% nebwe acids, kusanganisira zvinhu - abietic) kuti insoluble mumvura asi soluble mu Ether, doro, chloroform uye benzene. Kana neshungu kuti 50-120 C. (nokuti mhando dzakasiyana) rosin mazariro vari chakanyevenuka.

Where akaita shoko "rosin"? Izvi Ungangove kunaka zita reguta yechiGiriki yekare Colophon, pakavakirwa akakura miti kuti kupa pfuma yakadaro. Kare (makore anopfuura zviuru zvitatu akapfuura) kubva turpentine Inogadzirwa nemasiridzi anobuda mumiti vakazvigadzirirwa muchidziisa munhu wakaoma vakasara chaizvo chinyakare rosin fuma.

Rosin - imwe chishongedzo, pasina iro hazvibviri kutamba, dzakadai gitare, Viola, kaviri Bass, chiridzwa chavo chinonzi cello. Kana vachidzipukuta uta piece fuma iyi pave akasununguka mamorekuru iyo kupa mumwe adhesion kuti tambo, nokudaro mokusvinwa inzwi. rosin kwakadaro kazhinji pave dzisiri maindasitiri nenzira, nebwe inounganidzwa chete kuwira pamwe kuwedzera "chakavanzika" zvinhu izvo zvine mumwe zvizivikanwe yavo (inogona kuwedzerwa simbi, sirivha kana kunyange ndarama guruva, etc.). Mukuwedzera, rosin pamberi kutongokwizwa inotsikwa mitambo isati Somuenzaniso, mutsimba uye jockeys chigaro pamberi kusvetuka.

Rosin - a fuma yakashandiswa zvikuru uye vakashandisa ari indasitiri. Kare, rakanga vaizviti mune sipo-kugadzira, kugadzirwa adhesives, Simbiso wakisi. Nhasi nezvitima vane rosin inoshandiswa kugadzira magirazi sepombi kuti dzinoumba chivharo nokuda kwezvifananidzo zvaAtemisi varnishes, kudhinda kubasa brazing Mazinga, uyewo mupepa indasitiri. Uye kwose kwose, pachirehwa chikuru chepfungwa - kukwanisa kusika namuka yeimwe kana neshungu.

rosin kurimwa vakawanda haana kuchinja pamusoro zvemakore. Kutanga zvinhu (tarred stumps unganidzwa nebwe - oleoresin) anoiswa mukati cubes, umo kubatwa chiutsi kana kupopotedzana nomoto. Kubva quintal oleoresin akawana anenge 12 makirogiramu ose turpentine (kwakadonhera) uye makirogiramu 70 rimwe rosin, iyo yakabikwa kubvisa mvura uye akaisa mumidziyo. Kana fuma iri zvikaramba kubva chigutsa, ivo pre-vanonetseka uye ipapo musanganiswa chips mvura iri pasi dzokubudisa rikurumidze. Mumwe cubic mita huni yokuranga tarred pamusoro mana makirogiramu ose rosin.

Ndezvipi huru pamutemo Zviridzwa anoshandiswa nevanodavira emakambani kuti pave rosin? № GOST 19113 - 84, kunyanya, ari Zvinodiwa inoverengeka zvinhu uye kugadzirwa parameters. Kwazviri tinogona kudzidza chii chinofanira kuva chimiro kubva rosin, ndeipi kunogamuchirika arambe achirema, mvura kugutsikana, kuti kuderedza pfungwa, iine acid nhamba, etc. Gwaro Hunotaurawo kuti kuchengeteka zvinodiwa kugadzirwa kwacho (rosin -. Hazvina mwero fuma ngozi, sezvo ayo aerosol zvingakonzera kutsamwa), kugamuchira mitemo, nzira kuongorora rakapedzwa chigadzirwa, okuchengetera uye garandi mitemo.