Bakelite - abin da yake wannan kaya, abin da suke da kaddarorin?

Bakelite - abin da yake da shi? Abu ne daya daga cikin tsofaffin iri robobi ci gaba da mutãne. An samu ta hanyar condensing phenols da formaldehyde resins, a gaban Alkali. Externally, da kayan iya da ɗan kama amber, tukuru roba, celluloid, kuma ko da hauren giwa.

Da sabuwar dabara na Bakelite

Bakelite - abin da yake wannan kaya? A ra'ayin tasowa wani nauyi-taƙawa, wadanda ba flammable roba zo zuwa Belgium kirkiro Leo Bakelandu baya a 1909. Na dogon lokaci da kayan da aka yi amfani da musamman saduwa da bukatun masana'antu yankunan. Daga baya, haske nauyi da kuma matsanancin ƙarfi daga Bakelite aiki a matsayin kyau kwarai Properties for kwararru a yi na m kayan ado.

Special bukatar kayan da farko ba su yi amfani. Kawai a cikin 40s na karshe karni saboda da gagarumin fadada daga cikin launi palette, Bakelite fara jawo hankalin hankalin da yawa kamfanonin da cewa kware a cikin kayan ado da kuma da dama daga gidan na'urorin haɗi.

Bayan da yaki, bukatar ki dan kadan a cikin Bakelite. Wani sabon kalaman na shahararsa daga cikin kayan zo a cikin 80s, a lokacin da ado na bakelite sun sake a bukatar, sun fi mayar saboda American zanen kaya. A musamman, wata babbar tarin Bakelite kayan ado da wani shahararren ɗan wasa da kuma shirya finafinai Endi Uorhola, bayan mutuwar wanda kayayyakin da aka sayar a gwanjo ga wani Littãfi Naira Miliyan Xari a lokacin.

Yau, da hankali ga Bakelite matsayin high ƙarfi, musamman hur da textured abu ne har yanzu isasshe high, duk da haka, kamar yadda ta price.

Yadda za a samar da Bakelite

A cakuda formalin da phenols a gaban wani Alkali ko acid kara kuzari Forms bakelite. Mene ne wannan? Da yake jawabi na formalin, to, shi ne ta shirya da hadawan abu da iskar shaka na methanol a zazzabi na 650 ° ^C karkashin gaban mai kara kuzari a cikin nau'i na azurfa. Wani bangaren Bakelite - phenol samar daga itace, lignite peat kayayyakin man fetur refining.

Sinadaran Bakelite zuba a cikin na musamman siffofin, kuma mai tsanani zuwa 80 ^C. The raw samfurin "Bakelite A" a dakin da zazzabi yana da kaddarorin kama rosin.

Don kauce wa samuwar kumfa kuma cavities a cikin tsarin Bakelite abu ne polymerized a wani dagagge matsa lamba matakin na game 8 atmospheres. Lokacin da Polymerization Bakelite a danne a kwantena, da ake bukata matsa lamba aka samu da kanta.

Bakelite - abu Properties

Bakelite ne m, m abu da cewa ya zama infusible, insoluble form a ƙarƙashin rinjayar shafe tsawon dumama. Abu da-narkewa a cikin barasa. Saboda haka, wannan dukiya da aka samu nasarar amfani da samar da bakelite lacquers.

A kayan yana da wani m shafi. Bakelite ne mai kyau shugaba na zafin rana da kuma ta surface resists abrasion da kuma matsa lamba. Machining na Bakelite za a iya sanya a kan wani lathe.

Daga cikin wadansu abubuwa, da kayan yana da high jure lalatattu sunadarai. Ware suna kawai mayar da hankali mafita na nitric acid da sulfuric acid.

Babu shakka, kamar sauran kayayyaki, shi yana da nasa drawbacks da bakelite. Mene ne wannan? Da farko, shi ne ya kamata a lura da yawa, kuma Ya ƙãra brittleness na kayan. Abubuwa a kan tushen da samu m Bakelite. Saboda haka, abu ne kaucewa m domin samar da bawo na zamani lantarki.

A lokaci guda, Bakelite ne cutarwa saboda gaban a cikin abun da ke ciki na formaldehyde da kuma wasu masu guba aka gyara. A wannan hasashe, da yiwuwar amfani da kayan a wasu masana'antu sassa zama mai iyaka.

Yadda za a bambanta real daga karya ne Bakelite?

Bakelite - abin da yake da shi? Da farko, da kayan ne halin da m Properties kamar weathering juriya, acid ne m dielectric, kuma shi ne sauki aiki mechanically.

Duk da dukan yawa furta rarrabe Properties daga cikin abu, sau da yawa, akwai fakes. Duk da haka, akwai da dama da tabbatar da hanyoyi da cewa ba ka damar rarrabe irin roba daga mai karya ne:

1. Sarrafa baya surface Bakelite iyali tsabtace dole take kaiwa zuwa faru na m patina matsayin yellowish tabo.
2. Gurbin kan bakelite ruwan zafi yana sa peculiar wari, dandano dan kadan reminiscent na kafur.

A gaskiya, yin karya ne Bakelite ne quite sauki. Idan akwai wani takamaiman sa na sinadaran yayan kwaikwayo na kayan za a iya sanya a gida. Sau da yawa, kawai a lokacin gwaji da kuma kusa-up, kusa da jarrabawa ya bayyana cewa abu ne ba na kwarai.

ado Manufacturing Bakelite

Shin Bakelite cutarwa? Wadannan al'amurran da suka shafi aka bai wa mafi yawa sana'a suka yanke shawara su shiga a cikin kayan ado. A lokacin bayyanar da abu, da aminci daga ta yin amfani kiwata wasu shakka. A halin yanzu, duk da haka, abun da ke ciki na Bakelite bã tãre da guba, yiwuwar abubuwa masu cutarwa. Wannan shi ne dalilin da ya sa a yau shi ne don haka gaye don amfani da wannan tsarin domin samar da kayan ado.

Akwai mayu cewa ana amfani da samar da kayan ado bakelite harsashi tsohon kayan. Yawancin lokaci, a cikin wannan masana'antu hanya, da mai saye da kayan ado a yi gargaɗi game da asalin.

Cost na kayayyakin na Bakelite

Idan muka yi magana game da kudin Bakelite kayan ado, to, shi ya dogara da wuya daga cikin samar da kayayyakin, tarin darajar da kuma ikon da da manufacturer. Yawancin lokaci, bakelite kayan ado baki, kore, Iris launuka za ka iya saya a magangara mafi ƙasƙanci price.