Ochita bwino a konkriti angapindule ndi kusinthana ndi zida zam'madzi zochokera ku Bronze. Awiriwa amapikisana mogwirizana ndi kuvutikira, kukhazikika, kapangidwe kake ndi katswiri wotsiriza.
Zida za Bronze ndi njira yodalirika yoperekera m'mbali mwa radius ndi kulumikizana molunjika ku Concete. Kapangidwe kake kolimba kumakhala ndi kuchuluka kochepa kwambiri ndipo kumatha kupereka zotsatira zabwino. Pachifukwachi, zida zamkuwa nthawi zambiri zimakhala maziko a masitima a ku Connerete kumaliza. Komabe, zomwe amakonda zimabwera pamtengo. Ndalama ndi ndalama zopanga bronze zimapangitsa kuti pakhale malonda, koma siziyenera kukhala choncho. Pali zinthu zina zomwe zilipo.
Ngakhale mawonekedwe awo ndi osiyana, amkuwa ndi zinc ali ndi zofananira. Amapikisana wina ndi mnzake molimba mtima, kukhazikika, kapangidwe kake ndi ntchito zothandizira pathupi. Komabe, zinc ali ndi mapindu ena owonjezera.
Kupanga kumachepetsa kolemetsa kwa makontrakita ndi opanga. Kwa chida chilichonse chamchere chopangidwa, zida ziwiri za zin zitha kusintha. Izi zimachepetsa kuchuluka kwa ndalama zowonongeka pazomwe zimapereka zotsatira zomwezo. Kuphatikiza apo, kupanga wopanga ndi kotetezeka. Mwa kusintha kwamisika ku zinki, makontrakitala onse ndi opanga adzapindula.
Kuyang'anitsitsa kapangidwe kake kamawonetsa kuti mkuwa ndi avomerezo wamkuwa yemwe amagwiritsidwa ntchito kwa zaka zopitilira 5,000. M'nthawi yovuta ya m'badwo wankhanira, chinali chovuta kwambiri komanso chofananira kwambiri ndi anthu, ndikupanga zida zabwino, zida, zida zina zofunika kupulumuka kwa anthu.
Nthawi zambiri pamakhala kuphatikiza kwamkuwa ndi tini, aluminiyamu kapena nickel (etc.). Zida zambiri za sinkrete ndi 88-90% mkuwa ndi ani 10-12%. Chifukwa cha mphamvu zake, kuuma komanso kuchuluka kwakukulu, kapangidwe kake ndi koyenera kwambiri kwa zida. Makhalidwewa amaperekanso katundu wokhalitsa wogwira ntchito, kukhazikika kwa Abrasion ndi kulimba kwambiri. Tsoka ilo, amakondanso kutuwa.
Zida zowoneka bwino za mpweya, zida zamkuwa zimaxidize ndikusintha zobiriwira. Danga wobiriwira uyu, wotchedwa patina, nthawi zambiri amakhala chizindikiro choyambirira cha kuvala. Patina amatha kukhala ngati chotchinga chotchinga, koma ngati chlorides (monga madzi am'madzi, nthaka kapena thukuta) lilipo, zida izi zimatha kukhala ndi "matenda amkuwa". Uku ndiye kuwononga zifukwa zopanduka (zida zamkuwa). Ndi matenda opatsirana omwe amatha kulowa zitsulo ndikuwononga. Izi zikachitika, palibe mwayi woletsa.
Otsatsa a Zinn ali ku United States, omwe amaletsa ntchito yolemetsa. Izi sizimangobweretsa ntchito zambiri zaukadaulo ku United States, komanso kuchepa kwake ndalama zowonjezera ndi mtengo wogulitsa. Makampani a Marshalltown
Chifukwa zinc ilibe chikho, "matenda amkuwa" angapewe. M'malo mwake, ndi chinthu chachitsulo chokhala ndi lalikulu patebulo la nthawi ndi hexaloal pafupi kwambiri (HCP). Ilinso ndi kuuma koyenera, ndipo kumatha kusokonezeka komanso kosavuta kukhazikika pa kutentha kwambiri kuposa kutentha kozungulira.
Nthawi yomweyo, ng'ombe zamkuwa zonsezi ndi zinc ali ndi zovuta zomwe ndizoyenera kwambiri pazitsulo (mu mohs Hardinale Scale Scale Scale Scale Scale Scale Scale Scale Scale Scale Scale Scale Scale Scale ndi zitsulo zazitsulo, zinc = 2.5; bronze = 3).
Kwa zitsulo zotsikira, izi zikutanthauza kuti, malinga ndi kapangidwe kake, kusiyana pakati pa bronze ndi zinc ndikochepa. Onsewa amapereka zida zongoyerekeza ndi mphamvu zambiri zokhala ndi katundu wambiri, zotsutsana zabwino, komanso kuthekera kopanga zotsatira zomwezo. Zinc ilibe zovuta zonse zomwezo, ndizosavuta kugwiritsa ntchito, kugonjetsedwa ndi madontho a mkuwa, komanso okwera mtengo.
Kupanga kwamkuwa kumadalira njira ziwiri zopangira (mchenga woponya ndikufa), koma njira yake ndi yokwera mtengo kwa opanga. Zotsatira zake ndikuti opanga angadutse pazovuta za makontrakitala.
Mchenga woponya, monga dzinalo likusonyeza, ndikuthira kutsanulira zamkuwa zamkuwa kukhala nkhungu yotayirira yosindikizidwa ndi mchenga. Popeza nkhungu itayika, wopangayo ayenera kusintha kapena kusintha nkhungu pa chida chilichonse. Izi zimatenga nthawi, zomwe zimapangitsa kuti zikhale zopangidwa ndi zida zochepa zomwe zimabweretsa ndalama zambiri chifukwa choperekera zakudya.
Kumbali inayo, kufa kumaliseche sikuti. Chitsulo chikadzaza mu chitsulo chachitsulo, cholumikizidwa ndikuchotsedwa, nkhungu imakonzekeranso kugwiritsa ntchito nthawi yomweyo. Kwa opanga, kuyipa kokha kwa njirayi ndikuti mtengo wa nkhunda umodzi umakhala wokwera madola masauzande ambiri.
Mosasamala kanthu kuti wopanga wopanga amasankha kugwiritsa ntchito chiyani, kupera komanso kufooka kumakhudzidwa. Izi zimapereka zida zamkuwa zosalala, ma ashel okonzeka komanso okonzeka kugwiritsa ntchito mankhwala. Tsoka ilo, njirayi imafuna ndalama.
Kukupera komanso kufooka ndi gawo lofunikira pakupanga zida zamkamwa, ndipo zizipanga fumbi lomwe limafunikira kusefa kapena mpweya wabwino. Popanda izi, ogwira ntchito amavutika ndi matenda amtundu wotchedwa chibayo kapena "pneumuconiosis", yomwe imayambitsa minofu yokhazikika kuti idziunjirize m'mapapu ndipo imatha kuyambitsa matenda osavomerezeka.
Ngakhale kuti mavuto azaumoyowa nthawi zambiri amakhazikika m'mapapu, ziwalo zina zimakhalanso pachiwopsezo. Tinthu tambiri timatha kusungunuka mu Magazi, kuwalola kuti afalitsidwe thupi lonse, akukhudza chiwindi, impso ngakhale ubongo. Chifukwa cha zinthu zoopsazi, opanga ena aku America safunanso kuyika antchito awo pachiwopsezo. M'malo mwake, ntchitoyi imachotsedwa. Koma ngakhale opanga njirayi amene adaitanitsa kuti aletse kupanga ndi kupemberera komwe kumakhudzidwa.
Ponena za opanga ochepa komanso ochepa a Bronzes kunyumba ndi kunja, ma bronzes amakhala ovuta kwambiri kupeza, chifukwa cha zinthu zopanda nzeru.
Kwa zitsulo zotsirizira, kusiyana pakati pa bronze ndi zinc ndikochepa. Onsewa amapereka zida zongoyerekeza ndi mphamvu zambiri zokhala ndi katundu wambiri, zotsutsana zabwino, komanso kuthekera kopanga zotsatira zomwezo. Zinc ilibe zovuta zomwezo, ndizosavuta kugwiritsa ntchito, kugonjetsedwa ndi matenda amkuwa, komanso okwera mtengo. Makampani a Marshalltown
Kumbali inayo, zinc kupanga sikumakhala ndi mtengo womwewo. Izi ndizomwe zimachitika chifukwa cha chitukuko champhamvu kwambiri cha zincy mu 1960s, chomwe chimagwiritsa ntchito kugwirira kuzizira ndi kuyamwa kwa nthunzi kuti mupange zinc. Zotsatira zake zabweretsa zabwino zambiri kwa opanga ndi ogula, kuphatikiza:
Zinc imafanana ndi yamkuntho m'mbali zonse. Onsewa ali ndi vuto lalikulu kwambiri komanso kukana kwa engrision, ndipo ndi zabwino kuti mugwire ntchito ya konkriti, pomwe zinc imaziyaka mopitilira muyeso, osavuta kugwiritsa ntchito matenda owoneka bwino za.
Ili ndi gawo laling'ono la mtengo wa zida za bronze. Zinc adakhazikika ku United States, komwe kumakhala kolondola ndipo sikutanthauza kukupukusa ndikutsutsana, motero amachepetsa ndalama zopangira.
Izi sizimangopulumutsa antchito awo ku mapapu a fungu ndi mikhalidwe ina yayikulu, koma zimatanthauzanso kuti opanga amathanso kuwononga ndalama zambiri. Izi zidzakhalapodi pa kontrakitala kuti awathandize kupulumutsa ndalama zogulira zida zapamwamba.
Ndi mapindu onsewa, itha kukhala nthawi yoti makampani asiye a m'badwo wa bronzen adgenti ndi kukumbatira zamtsogolo za zinc.
Megan Rasuy ndi wolemba nkhani ndi mkonzi wa Marshallown, mtsogoleri wapadziko lonse wopanga zida zamanja ndi zida zomanga m'malo omanga mafakitale osiyanasiyana. Monga wolemba wokhala, amalemba zinthu zokhudzana ndi DIY ndi zokhudzana ndi marshalltown diy grashp.
Post Nthawi: Sep-06-2021