1, Muchidimbu simbi chimiro indasitiri

Chimiro chesimbi chivakwa chinoumbwa nezvinhu zvesimbi, inova imwe yemhando huru dzezvivakwa zvekuvaka. Chimiro ichi chinoumbwa nematanda esimbi, mbiru dzesimbi, matanda esimbi nezvimwe zvinhu zvakagadzirwa nesimbi yechikamu uye mapurati esimbi, uye chinoshandisa silane, manganese phosphating yakachena, kugeza nemvura, kuomesa, galvanizing uye mamwe maitiro ekubvisa ngura nekudzivirira ngura. Misono yewelding, mabhaudhi kana rivets zvinowanzo shandiswa kubatanidza nhengo kana zvikamu. Nekuda kwehuremu hwayo hushoma uye kuvakwa kwayo kuri nyore, inoshandiswa zvakanyanya mumiti mikuru, nzvimbo, nzvimbo dzakakwirira uye dzimwe nzvimbo. Ine hunhu hunotevera: 1. Simba rezvinhu zvakawanda uye huremu hushoma; 2. Kusimba kwesimbi, plasticity yakanaka, zvinhu zvakafanana, kuvimbika kwakanyanya kwechivakwa; 3. Dhigirii repamusoro remichina mukugadzira nekuisa chivakwa chesimbi; 4. Kushanda zvakanaka kwekuvhara chimiro chesimbi; 5. Chimiro chesimbi hachipise kupisa asi hachipise moto; 6. Kusasimba kwengura kwechivakwa chesimbi; 7. Kabhoni shoma, inochengetedza simba, girini uye inogona kushandiswazve.

2, Kubudirira kwenzvimbo yesimbi yekuvaka indasitiri

Mumakore achangopfuura, indasitiri yekuvaka simbi muChina yakasangana nedambudziko kubva pakutanga zvishoma nezvishoma kusvika pakukura nekukurumidza. Muna 2016, hurumende yakaburitsa magwaro akati wandei emutemo kugadzirisa dambudziko rekuwandisa kwesimbi uye kukurudzira kukura kweindasitiri yekuvaka nenzira yakasvibira uye inoenderera mberi. Muna 2019, Ministry of housing and urban rural department yakaburitsa "pfungwa huru dzebasa ra2019 rebazi rekutarisira musika wekuvaka reMinistry of housing and urban rural development", iro raida kuti paitwe basa rekutanga rekuvaka dzimba dzakagadzirwa nesimbi; Muna Chikunguru 2019, Ministry of housing and urban rural development yakabvumidza zvirongwa zvekuedza zveShandong, Zhejiang, Henan, Jiangxi, Hunan, Sichuan, Qinghai nedzimwe matunhu manomwe kuti vakurudzire kugadzwa kwehurongwa hwekuvaka dzimba dzakagadzirwa nesimbi dzakakura.

Zvichitevera mitemo yakanaka, kudiwa kwemusika nezvimwe zvinhu, nzvimbo itsva yekuvaka zvivakwa zvakagadzirwa nesimbi yakawedzera neinenge 30%. Kubuda kwechivakwa chesimbi munyika kunoratidzawo kuwedzera kuri kuramba kuchienderera mberi gore negore, zvichikwira kubva pamatani mamiriyoni makumi mashanu nerimwe muna 2015 kusvika pamatani mamiriyoni makumi manomwe nerimwe nehafu muna 2018. Muna 2020, kubuda kwechivakwa chesimbi kwakapfuura matani mamiriyoni makumi masere nemapfumbamwe, zvichiita 8.36% yesimbi isina kucheneswa,