Wararka

Sida caadiga ah, dahaarka waxay leeyihiin laba shaqo oo aasaasi ah: qurxinta iyo ilaalinta kuwaas oo ah muhiimad dhaqaale oo la taaban karo. Dahaar hawleed ayaa laga yaabaa in lagu dabaqo si loo beddelo sifooyinka dusha sare ee substrate-ka, sida adhesion, qoynta, caabbinta daxalka, ama xidhashada caabbinta. Indus-ka birta ah...Sii akhri»

Maanta, Shiinuhu waa mid ka mid ah dhoofinta birta ugu weyn adduunka ee suuqa dhuumaha caalamiga ah. Sannad kasta, Shiinuhu waxa uu u dhoofiyaa suuqyada caalamiga ah tiro badan oo noocyo kala duwan ah, sida dhuumaha birta ah ee wareegsan, tuubooyinka birta leydiga ah, tuubooyinka birta laba jibaaran iyo wixii la mid ah. Dhinaca kale, Shiinaha ayaa...Sii akhri»

Maanta, iyadoo balaarinta joogtada ah ee caalamiga ah ee dhaqaalaha, waxay noqotaa lagama maarmaan in la wanaajiyo doorka xoogga leh ee warshadaha birta ee Shiinaha ee adduunka. Si gaar ah u hadla, lama kala saari karo dadaalka wadajirka ah ee dhammaan soosaarayaasha tuubooyinka birta ee warshadaha birta. Guud...Sii akhri»

Tan iyo markii Shiinuhu uu noqday mid ka mid ah wadamada ugu weyn ee ganacsiga birta & birta, Shiinuhu wuxuu door weyn ku leeyahay suuqa caalamiga ah. Macaamiil aad u tiro badan oo ka kala yimid gobollo ama dalal kala duwan ayaa Shiinaha ugu yaacay badeecadaha ay rabaan. Macaamiisha, gudaha...Sii akhri»

Suuqa dhuumaha birta ee hadda jira, waxaa jira dhammaan noocyada tubooyinka birta oo leh qeexitaan dhammaystiran, kor u qaadista baahida codsiga ee isticmaaleyaasha kala duwan. Dhuumaha galvanized ee kulul waa nooc ka mid ah tuubo gaar ah, oo leh codsiyo kala duwan oo aad u ballaaran, sidaas darteed waxay heshay dad badan oo doorbiday ...Sii akhri»

Dhuumaha birta galvanized waxay ahayd nooc aad caan u ah tuubooyinka birta ee suuqa dhuumaha birta ee hadda jira. Ugu horreyntii, waa in aan xusno hal element oo muhiim ah oo ka samaysan tuubada birta: "kaarboon". Intaa waxaa dheer, kaarboonka, ilaa xad, ayaa go'aaminaya adkaanta tuubada birta ee dhammaatay. Mor...Sii akhri»

Ganacsiga dibadda, dhuumaha birta duuban ee qabow ayaa dhawaanahan ku jira qayb weyn suuqa caalamiga ah. Gaadiidka tuubooyinka ayaa noqday mid aad muhiim u ah. Sida baakadaha tuubooyinka loo arki karo nooc adeeg ah, sidoo kale waa arrin muhiim ah oo saameyn ku yeelanaysa ganacsiga ugu dambeeya ee ganacsi ee u dhexeeya labada dhinac ...Sii akhri»