Pulatifomu ya granite ndi nsanja yopangidwa ndi granite. Yopangidwa kuchokera ku miyala ya igneous, granite ndi mwala wolimba, wopangidwa ndi kristalo. Poyamba umapangidwa ndi feldspar, quartz, ndi granite, umaphatikizidwa ndi mchere umodzi kapena ingapo wakuda, zonse zokonzedwa mofanana.
Granite imapangidwa makamaka ndi quartz, feldspar, ndi mica. Feldspar imakhala ndi 40%-60%, ndipo quartz imakhala ndi 20%-40%. Mtundu wake umadalira mtundu ndi kuchuluka kwa zigawozi. Granite ndi mwala wopangidwa ndi kristalo. Granite yapamwamba kwambiri ili ndi tinthu tating'onoting'ono komanso tofanana, kapangidwe kolimba, kuchuluka kwa quartz, komanso kuwala kowala kwa feldspar.
Granite ili ndi silika wambiri, zomwe zimapangitsa kuti ikhale ndi asidi wambiri. Granite ina imakhala ndi zinthu zochepa zomwe zimapangitsa kuti iwonongeke, choncho mitundu iyi ya granite iyenera kupewedwa kugwiritsidwa ntchito m'nyumba. Granite ili ndi kapangidwe kolimba, kapangidwe kolimba, ndipo imalimbana ndi ma acid, alkali, komanso nyengo, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito panja kwa nthawi yayitali. Granite ili ndi makhalidwe awa:
1. Granite ili ndi kapangidwe kolimba, mphamvu yopondereza kwambiri, madzi ochepa, kuuma kwambiri pamwamba, kukhazikika bwino kwa mankhwala, komanso kulimba kwambiri, koma kukana moto bwino.
2. Granite ili ndi kapangidwe ka tinthu tating'onoting'ono tokhala ndi tinthu tating'onoting'ono, tapakatikati, kapena tokhala ngati tinthu tating'onoting'ono, kapena kapangidwe ka tinthu tating'onoting'ono tokhala ngati porphyritic. Tinthu tating'onoting'ono tomwe timakhala tofanana komanso tating'onoting'ono, tokhala ndi mipata yaying'ono (mipata nthawi zambiri imakhala 0.3% mpaka 0.7%), madzi ochepa (nthawi zambiri 0.15% mpaka 0.46%), komanso timatha kupirira chisanu bwino.
3. Granite ndi yolimba, yokhala ndi kuuma kwa Mohs pafupifupi 6 ndi kukhuthala kuyambira 2.63 g/cm³ mpaka 2.75. Mtundu wa g/(cm³) uli ndi mphamvu yokakamiza ya 100-300 MPa, ndipo granite wopyapyala umafika pa 300 MPa. Mphamvu yake yopindika nthawi zambiri imakhala pakati pa 10 ndi 30 MPa.
Chachinayi, granite imabala zipatso zambiri, imagwirizana ndi njira zosiyanasiyana zopangira zinthu, ndipo ili ndi mphamvu zabwino zolumikizira miyala. Kuphatikiza apo, granite siiwonongeka mosavuta, zomwe zimapangitsa kuti ikhale yoyenera kukongoletsera panja.
Kusunga nsanja ya marble (slab ya marble) kumafuna kudziwa kulekerera ndi zofunikira pakukonza nsanja ya marble yomwe ilipo, komanso kudziwa ngati malo ogwirira ntchito ali ndi mabowo. Ngati nsanja ya marble ili ndi mabowo ang'onoang'ono pamwamba pake, iyenera kubwezedwa ku fakitale kuti ikakonzedwe. Ngati kulondola kwangosintha, kukonza kuyenera kuchitika pamalo ogwiritsidwa ntchito. Pambuyo pogwiritsidwa ntchito nthawi yayitali, pafupipafupi, nsanja ya marble idzagwira ntchito Ngati nsanja ya marble ndi yopapatiza kwambiri, cholakwika cholondola chidzawonjezeka pang'onopang'ono, zomwe zimapangitsa kuti kulondola kusalondola. Pankhaniyi, imafunika kukonza.
Njira zokonzera nsanja za marble:
1. Yang'anani kulondola kwa nsanja ya miyala yamtengo wapatali ndikupeza cholakwika chake chamakono.
2. Pukutani nsanja ya marble mopanda mphamvu pogwiritsa ntchito zida zopukutira ndi zopukutira kuti mupeze mulingo woyenera.
3. Kupera kwachiwiri kwa pulatifomu ya marble pambuyo pa kupera kosakhazikika ndiko kuchotsa mikwingwirima yozama ndikukwaniritsa mulingo wofunikira.
4. Pukutani pamwamba pa nsanja ya marble kuti mupeze kulondola kofunikira.
5. Yesani kulondola kwa nsanja ya marble mutatha kupukuta, komanso patatha nthawi.
Nthawi yotumizira: Sep-01-2025