Ese ari maviri anopisa anokungururuka uye anotonhora kukungurutswa isimbi ndiro kana mbiri yekugadzira maitiro, ane simba guru pane chimiro uye zvimiro zvesimbi.

Steel rolling inonyanya kupisa kupisa, kutonhora kutenderedza kunowanzo shandiswa kugadzira simbi diki uye sheet simbi uye imwe chaiyo saizi simbi.

Kazhinji kutonhora uye kupisa kukungurutswa kwesimbi:

Waya: 5.5-40 mm muhupamhi, makoiri, ese anopisa akakungurutswa.Mushure mekudhirowa kunotonhora, ndeye inotonhora yekudhirowa zvinhu.

Simbi yakatenderedza: Pamusoro peiyo chaiyo saizi yechinhu chinopenya kazhinji inopisa yakakungurutswa, asi zvakare inogadzirwa (yepamusoro maratidziro ekugadzira).

Strip simbi: inopisa yakakungurutswa inotonhora yakakungurutswa, inotonhora inokungurutswa kazhinji yakatetepa.

Simbi ndiro: inotonhora yakakungurutswa ndiro kazhinji yakatetepa, senge mota ndiro;Kupisa kukungurutsira svikiro gobvu ndiro yakawanda, uye kutonhora kukunguruka kwakafanana ukobvu, kutaridzika kuri pachena kwakasiyana.

Angle simbi: yose inopisa yakakungurutswa.

Simbi chubhu: welded inopisa yakakungurutswa uye inotonhora inodhonzwa.

Channel uye H danda: inopisa yakakungurutswa.

Steel bar: inopisa yakakungurutswa zvinhu.

Hot rolled

Netsanangudzo, ingot yesimbi kana billet yakaoma kutsvedza uye kugadzirisa pane tembiricha.Inowanzo kupiswa kusvika 1100 ~ 1250 ℃ yekukunguruka.Kukunguruka uku kunodaidzwa kuti hot rolling.

Iyo tembiricha yekumisa yekutenderera inopisa kazhinji 800 ~ 900 ℃, uyezve inotonhodzerwa mumhepo, saka iyo inopisa yekutenderera mamiriro yakaenzana nekugadzirisa kurapwa.

Simbi zhinji inokungurutswa nekukunguruka kunopisa.Kupisa kwakatenderedzwa simbi, nekuda kwekupisa kwakanyanya, pamusoro pekuumbwa kweiyo oxide sheet, nekudaro ine imwe corrosion resistance, inogona kuchengetwa mumhepo yakashama.

Nekudaro, iyi layer yesimbi yeoxide inoitawo kuti pamusoro pesimbi inopisa yakakungurutswa uye saizi inochinjika zvakanyanya, saka simbi ine nzvimbo yakatsetseka, saizi chaiyo uye yakanaka michina zvivakwa zvinofanirwa kushandiswa seyakabikwa uyezve inotonhora yakakungurutswa.

Zvakanakira:

Kugadzira kukurumidza, chibereko chakakwirira, uye usakuvadza chifukidzo, chinogona kuitwa mumhando dzakasiyana-siyana dzemuchinjikwa mafomu, kusangana nezvinodiwa zvekushandiswa kwemamiriro ezvinhu;Cold rolling inogona kuburitsa hombe yepurasitiki deformation yesimbi, nekudaro ichisimudza goho resimbi.

Zvakaipa:

1. Kunyange zvazvo pasina kupisa kwepurasitiki kumanikidzika mukugadzirisa kwekugadzira, kuchine kusara kwekunetseka muchikamu, izvo zvichange zvichikanganisa zvachose uye yemunharaunda buckling zvinhu zvesimbi;

2. Chikamu chinotonhora-chakaputirwa kazhinji chikamu chakazaruka, chinoita kuti kuomarara kwemahara kwechikamu kuderera.Zviri nyore kumonyorora kana yakagonya, uye iri nyore kukotama nekumonyoroka painotsikirirwa, uye kudzivirira kudhonzwa kwakashata.

3. Ukobvu hwemadziro esimbi inotonhora-yakaumburudzwa idiki, uye hapana kukora pakona panosangana ndiro, saka ine husina simba hwekugona kutakura nharaunda yakaomeswa mutoro.

Cold rolled

Cold rolling (Cold rolling) zvinoreva nzira yekukunguruka yekushandura chimiro chesimbi nekudzvanya simbi pasi pekumanikidza kwerori patembiricha yekamuri.Inonzi kutonhora kukunguruka, kunyange zvazvo nzira yacho inopisawo simbi.Kuti zvive zvakanyanya kujeka, kutonhora kutenderedza kunoshandisa inopisa yakakungurutswa simbi makoiri semidziyo yakabikwa, iyo inogadziriswa pasi pekumanikidzwa mushure mekutora asidhi kubvisa iyo oxide sikeri, uye zvigadzirwa zvakapedzwa zvinokungurutswa zvakaoma coils.

Kazhinji inotonhora yakakungurutswa simbi senge galvanized, ruvara simbi ndiro inofanirwa kuvharirwa, saka mapurasitiki uye kureba zvakare kwakanaka, anoshandiswa zvakanyanya mumotokari, midziyo yemumba, hardware uye mamwe maindasitiri.Pamusoro pendiro inotonhora-yakakungurutswa ine imwe nhanho yekutsvedzerera, uye ruoko rwunonzwa rwakatsetseka, kunyanya nekuda kwekunhonga.Kupedzwa kwepamusoro kwendiro inopisa yakakungurutswa haigone kuzadzisa zvinodiwa, saka tambo yesimbi inopisa inoda kukungurutswa, uye ukobvu hwesimbi yakanyungudutswa yesimbi inowanzoita 1.0mm, uye tambo yesimbi inotonhora inogona kusvika 0.1mm. .Kupisa kutenderedza kuri kutenderera pamusoro peiyo crystallization tembiricha poindi, kutonhora kutenderera kuri kuyerera pazasi peiyo crystallization tembiricha poindi.

Shanduko yechimiro chesimbi inokonzerwa nekutonhora kukunguruka ndeyekuenderera kutonhora deformation.Iko kutonhora kuomarara kunokonzerwa nekuita uku kunowedzera kusimba uye kuoma kweiyo yakakungurutswa yakaoma coil uye inoderedza kuoma uye epurasitiki index.

Kupedzisira kushandiswa, kutonhora kutenderedza kunokanganisa kuita kwekutsika uye chigadzirwa chakakodzera zvikamu zvinongoremara.

Zvakanakira:

Inogona kuparadza chimiro chekukanda chesimbi ingot, kunatsiridza saizi yezviyo zvesimbi, uye kubvisa kukanganisa kweiyo microstructure, kuitira kuti chimiro chesimbi chigadziriswe uye michina yemagetsi inovandudzwa.Kuvandudzwa uku kunonyanya kuratidzwa munzira yekutenderedza, kuitira kuti simbi isisiri isotropic kune imwe nhanho.Mabhubhu, kutsemuka uye kusununguka kwakagadzirwa panguva yekukanda kunogona zvakare kusungirirwa pasi pekushisa kwakanyanya uye kumanikidzwa.

Zvakaipa:

1. Mushure mokupisa kunopisa, iyo isiri-metallic inclusions (kunyanya sulfides uye oxides, pamwe chete nesilicates) musimbi yakasvibiswa uye yakasvibiswa.Delamination inokanganisa zvakanyanya kusimba kwesimbi padivi pehukobvu nzira uye inogona kukonzera interlaminar kubvaruka panguva weld shrinkage.Kuomarara kwenzvimbo kunokonzereswa ne weld shrinkage kazhinji kanoverengeka kwegoho point strain, iyo yakakura kudarika iyo inokonzerwa nemutoro.

2. Kushungurudzika kwakasara kunokonzerwa nekutonhora kusina kuenzana.Kushungurudzika kwasara ndeyemukati wega-chikamu kuenzana kushushikana pasina simba rekunze.Mhando dzese dzesimbi dzinopisa dzakakungurutswa dzechikamu dzine iyi mhando yekusarira kunetseka.Iyo yakakura saizi yechikamu che general chikamu simbi ndeye, iyo yakakura yekusarira kushushikana.Kunyangwe iyo yakasara yekushushikana iri yega-phase equilibrium, ine imwe mhedzisiro pakuita kwenhengo yesimbi pasi pesimba rekunze.Zvakadai se deformation, kugadzikana, kuneta kuramba uye zvimwe zvinhu zvinogona kuva nemigumisiro yakaipa.

Mhedziso:

Musiyano uripo pakati peinotonhora yekukunguruka uye inopisa kukunguruka inonyanya kupisa tembiricha yekukunguruka."Kutonhora" kunoratidza tembiricha yakajairika, uye "kupisa" kunoratidza kupisa kwakanyanya.

Kubva pane simbi yekuona, muganho pakati pekutonhora kukunguruka uye kupisa kunopisa kunofanirwa kusiyaniswa nerecrystallization tembiricha.Ndiko kuti, kukunguruka pazasi recrystallization tembiricha inotonhora kukunguruka, uye kutenderera pamusoro peiyo tembiricha recrystallization inopisa kukunguruka.Iyo tembiricha recrystallization yesimbi ndeye 450 ~ 600 ℃.