Chigadzirwa Chekutanga
Coal tar pitch, anozivikanwawo semarata tar pitch, rudzi rwechiratidzo chekunze chinoreva zvakasara zvakasara mushure mekusvitswa uye kugadziriswa kwemarongo kuti ubvise zvidimbu zvemvura. Iyo inowanzo kuve viscous mvura, semi-yakasimba kana yakasimba, dema muvara uye glossy, ine carbon zvirimo zve92% ~ 94% uye yehydrogen yezvinhu zvinenge 4% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5% ~ 5%.
Izvo zvinhu zvikuru zvemazimbe tar tar polycyclic uye polycyclic tomatic hydrocarbons uye nhaka yavo. Iyo chaiyo yakanyanya kujairika yakaoma kunzwisisa, uye misiyano mumhando dzebhokisi dzemarasha uye maitiro ekugadzirisa zvinogona zvakare kukonzera kusawirirana mukuumbwa. Nzira iripo inonyanya kusiyanisa zvichienderana nekupfava kwekupfava kwairatidza.
Coal tar pitch ine maitiro anotevera:
- Yakaderera-tembiricha kugadzikana uye nyore kupfava kana kupisa.
- Kunamatira kwakanaka nemaminerari anounganidza.
- Kugadzikana kwemamiriro ekunze kune murombo, uye pasi pekupenga kwenguva refu kwekupisa, zuva, oxygen, etc., kuumbwa kunoshanduka zvakanyanya, zvichiita kuti zvive nyore kuzera uye kuva brittle.
- Plasticity yeplasticity, prone yekupaza nekuda kwekushongedza pasi pekushushikana.
- Inosanganisira phenol, anthracene, mafuta eNafutene, uye zvimwe zvinhu, saka zvine hutano hwakanaka-hwekushora.
Zvinoenderana nezvakareruka zvinyoro-nyoro mapoinzi, marasha tar angaakamurwa kuita mapoka matatu: akaderera-tembiricha pitch, uye yakakwirira tembiricha, imwe yegiredhi 1 uye giredhi 2. Izvo zvinoshandiswa mainini zvinosanganisira:
- Inoshandiswa seMafuta: Nekuda kweiyo yakakwirira yakasimba yezvinyorwa, inowanzo kusanganiswa nemafuta anorema kana kugadzirwa mune slurry yekushandisa, iyo inogona kutsiva mafuta anorema.
- Kugadzirwa kweCarbon Electrodes: Dhigirii yavo yeCarbon yeCarbon yakakura kwazvo, uye inogona kushandiswa seyemagetsi zvigadzirwa zvekugadzira, pamwe nekunyorova vamiririri uye mabhenji.
- Paint kugadzirwa: Mushure mekugadzirisa, inogona kushandiswa seyakawisira mvura yekuvhara zvivakwa uye mapaipi, senge epoxy coal tar yekucheka.
- Inoshandiswa kuvaka kuvaka mugwagwa uye zvigadzirwa zvekuvaka: zvinowanzosanganiswa nePetroleum Asphalt, kuita kweiyo asphaling iri nani pane kuvashandisa zvakasiyana, asi marongo ane zvinhu zvinokuvadza uye zvinoda kubatwa zvisina kukuvadza usati washandisa.
- Gadzira zvakakwirira-kukosha-zvakawedzerwa zvigadzirwa senge sindonji coke, yakagadziriswa kabhoni, kabhoni fiber, nezvimwe.
Paunenge uchishandisa marasha tarch, kutariswa kunofanirwa kubhadharwa kune choupfu hwekukuvadza hutano hwevanhu, uye kudzivirirwa kwezvakatipoteredza kunofanirawo kuderedza kusvibiswa kwenzvimbo panguva yekugadzirwa kwayo uye kushandiswa.
