Business lingaliro: ulimi wa njerwa. Technology ndi chomera kwa kupanga njerwa

Njerwa ndi kutali imodzi yabwino ndipo ambiri zomangira. Izo ntchito ndi omanga awiri ndi kampani akatswiri. Pali makampani ang'ono ndi lalikulu lomwe tikugwira opanga ndi kugulitsa mankhwala. Mukhozanso kulenga malonda ako umalimbikitsa amafuna wanu ndipo adzakhala kupeza ndalama. Komabe, kupeza njerwa apamwamba mikhalidwe luso ndi kutsatira kupanga ndondomeko. Ulimi wa njerwa kunyumba si idzagwiritsa ntchito zipangizo zodula kapena zapamwamba. Zinthu zofunika kwambiri amakonda mukonze chakumwa choyenera cha zipangizo.

mbali opanga

mitundu akhoza kukhala matabwa kuti kale kwenda pakati pawo. Zotsatira za zopangira aikidwa mu iwo. Ayenera kuchita nkhungu kakulidwe kuti chomaliza mankhwala unali wolingana kukula ndipo maonekedwe ndi njerwa za makolo amene ali mbali mkati masentimita 25x12x6,5. Rammer kapu kulola kunyamula zipangizo zimene zikugwirizana nkhungu. Ulimi wa njerwa adzakhala msanga ngati ena zidindo.

Technology ntchito

Mkati mwa nkhungu pasadakhale ndi kofunika moisten ndi kuwaza simenti youma. Kenako, yankho okonzeka aikidwa. Monga inu lembani mawonekedwe muyenera kuthetsa osakaniza ndi ngodya zonse ndi voids nakhuta. Owonjezera njira kuchotsedwa spatula. Kenako pakubwera kwa chivindikiro, amene kupsa pamwamba. Mu sitepe yotsatira biding nthawi zina, kenako kufunika mungaimitse mawonekedwe ndi kuchotsa chifukwa theka-chotsirizidwa. Chipinda ayenera kukhala akonzekeretse ndi poyimitsa pansi denga, amene adzaikidwa njerwa kuyanika. Free shrinkage zidzachitika mwa 15%. Pa nthawi imeneyi, ndi evaporation madzi. Awa akukhala chothandizira mgwirizano zinthu mu kusakaniza.

Sayenera poyera kuti mankhwala dzuwa. kupanga njerwa ikuchitika mu chipinda bwino mpweya wokwanira. Kuyanika kumatenga masiku 7 mpaka 14. Kumbukirani kuti ulimi wa njerwa popanda moto ndi chimodzi mwa yofulumira Chophweka njira yodalirika anafotokoza zinthu nyumbayi. Monga yekha, koma sangathe zofunika za izi kuti mankhwala chifukwa angathe kugwiritsidwa ntchito pa mapangidwe partitions mkati malo a. Ichi ndi chifukwa chinyezi angakhale ndi mavuto aakulu pa iwo.

Field ntchito yaiwisi

Ikani yaiwisi adzakhala kusinthika kwa partitions ndi makoma, umene udzakhazikitsidwe m'nyumba. Izo zikhoza anamanga, komanso osambira, amene ntchito zamitundu yosiyanasiyana. Komabe, kusowa kuvomerezedwa kuchita kumatira mkati. nkhani yogwira angagwiritsidwe ntchito yomanga ndi mpanda waukulu mu nyumba, omwe pansi limodzi. Pankhaniyi, denga ayenera kukhala nkhuni.

Kunyamula njerwa yowotcha

Ulimi wa njerwa mu nyumba kumafuna gawo lotsatira la mfuti ndi. Izi kupereka apamwamba zomangila. Kumbali ya mabizinezi mafakitale zimenezo ng'anjo apadera ntchito. Ngakhale kudzipatsa kupanga, mukhoza kuyamba mankhwala opangidwa kuchokera mabuku. Chifukwa chaichi nthaka muyenera kukhala okonzeka recess kuti mamita 0.5. Pa iye ndi kuchoka kuchokera pansi masentimita 20 ayenera kukhazikitsidwa zitsulo mbiya, umene uli wopanda pansi. Makoma chotengera ayenera kukhala mabowo omwe mavavu ndi anaika. Pa alumali chifukwa m'pofunika kuyala theka-yomalizidwa zinthu zimene zakhala chisanadze kuyanika. Pamwamba mbiya ali ndi tsamba zitsulo. Mu recess okonzeka ayenera kumanga moto.

yowotcha mokoma

kupanga njerwa luso kumatanthauza kusunga kutentha ena, kuti khalidwe anamaliza mankhwala. Pa tsiku loyamba maola asanu ndi atatu kutentha asungike mu madigiri 200. The ntchito yowotcha ikuchitika maola 12 kuti 16 Pa kutentha chiyenela kuchitika kwa madigiri 800 kwa 1000. 4 chasa zotsatirazi kutentha boma ayenera kukhala odekha, 500 600 madigiri. kusintha pang'onopang'ono kutentha idzapereka zotsatira anakhumba, kuchotsa pakutchulidwa wa ming'alu. Kuchepetsa moto pogwiritsa ntchito makala kapena mtengo. Anadzazidwa mphamvu ayenera ukhale pansi ndi chivindikiro ndi mwamphamvu chatsekedwa. Tikatero titha kumasula njerwa, afufuze limapezeka.

Kupanga ambiri njerwa

Bzalani kwa kupanga njerwa, koma mfuti mwina kuposa ndi chidwi kuchuluka kwa zomangira. Kuti tichite zimenezi, yothetsa ng'anjo ndi mphamvu. mawonekedwe ake ayenera amafanana ndi kamangidwe, mwapang'ono oposa. Akukwana yaiwisi backfilled ndi mchenga kapena dothi, kupereka kutchinjiriza matenthedwe. Pambuyo mkati mwa moto ndi kutentha zinthu ayenera kukhala ofanana ndi amene anali tafotokozazi. Ulimi wa njerwa Hyper-mbamuikha n'zothekanso kunyumba. Kuti muchite izi muyenera kugwiritsa ntchito makina apadera omwe compresses osakaniza okonzeka mu thanthwe. Ntchito sadzakhala ndi kufunika kogwiritsa ntchito magetsi. Ndiye ndondomeko adzakhala osavuta.

njira zina njerwa

Kupanga chibanthu ikukhudza ntchito zida pang'ono zambiri zovuta kuzimvetsa. Mapangidwe mankhwala kumachitika pa luso youma imachepa. Pankhaniyi, n'zotheka asatope. Kupanga ndi atolankhani zingalowe ntchito, amene nthaŵi zina m'malo mwa ndalezo. Nthawi zina, mfitiyo amagwiritsa lamba. Pambuyo kupanga preform akulowa kuyanika njerwa. Pakuti ichi fireplaces wapadera magetsi ntchito kukhalabe kutentha. Dongo refractory amachita ngati zofunika kwambiri pophika chofunika. Iye kufotokoza ductility ndi mkulu kutentha pakhomo. Pokonzekera njira anawonjezera kuti popanga oxides chitsulo kapena mchere za gulu kaolin wa. Zimenezi zimathandiza kuti mankhwala kwambiri wangwiro.

Ulimi wa njerwa ceramic

Ulimi wa njerwa ceramic kunyumba ikukhudza yokonza yaiwisi, mapangidwe ake ndipo anayamba mfuti. Clay ndi ncho mu miyala ndi, si abwino mu maonekedwe ake apachiyambi mapangidwe njerwa apamwamba. Misa ndi anabweretsa wokonzeka, imene tingathe zikutengedwa mankhwala. Kungakhale achilengedwe kapena makina amadza. Mu kuyanika siteji, kuchuluka amachepetsa mankhwala zili chinyezi 6%. Chotero muyeso pofuna kuti nthawi ya mfuti si ming'alu, ndipo musati deform kumaliza kwa katundu. Ngati ntchito choumitsira chipinda, iwo adzatha kupereka kutentha kuyambira 120 digiri 150. Malinga mnyontho yaiwisi, monga ulamuliro, nthawi imeneyi sakondwera masiku oposa 3. Chomaliza ndiyotani ntchito. Pakuti kukhazikitsa zidzafunika annular kapena mumphangayo ng'anjo.

Ulimi wa njerwa silicate

Ulimi wa njerwa silicate zimaphatikizapo kugwiritsa ntchito kaphatikizidwe autoclave. Kuti apange wina unit wa zinthu zidzafunika mbali 9 mchenga silika amene anali kale sieved zina, komanso mbali imodzi ya mpweya utsi. Mbali yomaliza ayenera kukhala wapadera.