Kev sib piv cov yam ntxwv ntawm kub dov pob zeb steel pob thiab cam khwb cia pob

Aug 19, 2021

Nyob rau hauv xyoo tas los no, kev lag luam hauv tsev tau maj mam nthuav tawm ib hom tshiab ntawm pob zeb steel pob-kub-kub-dov pob zeb steel pob, uas tuaj yeem siv dav hauv cov mining thiab concentrators, thermal fais fab nroj tsuag, cement nroj tsuag, refractory nroj tsuag thiab lwm yam lag luam. xav tau kev sib tsoo tshuab. Kub-kuav los tiag pob zeb steel npas yog zoo zoo, nqi-zoo, thiab lub zog-txuag thiab environmentally friendly txheej txheem ntau lawm. Tam sim no, lawv tau siv dav los ntawm cov tuam txhab mining loj txawv teb chaws thiab tau maj mam hloov cov pob zeb casting tsoos. Kev tshawb fawb ntawm Kub Rolled Pob Zeb Steel Pob

Qhov sib txawv ntawm kub dov pob thiab cam khwb cia pob

Cov khoom siv hauv cov khoom kub-kuav los tiag thiab cov khoom cam khwb cia yog txawv:

Kub-dov steel npas-cov khoom siv raw yog qis-alloy high-carbon tshwj xeeb steel, thiab cov hlau tiav tiav ua los ntawm cov nroj tsuag tshwj xeeb steel tsis tu ncua. Nyob rau tib lub sijhawm, cov nroj tsuag tshwj xeeb steel yuav tsum tau siv cov kub dov thiab extruded square billets ntawm ntau tshaj 16 npaug ntawm qhov ntim;

Cam khwb cia hlau npas-cov ntaub ntawv raw yog tsuas yog sau cov khoom seem steel, thiab ib qho kev faib ua feem ntawm cov ntsiab lus alloy ntxiv thiab cam khwb cia.

Qhov sib txawv ntawm cov khoom siv raw saum toj no txiav txim siab qhov sib txawv ntawm cov khoom kub-dov thiab cam khwb cia pob hauv plaub yam hauv qab no:

1.2. Lub hauv paus ntsiab lus ntawm kev tsim cov hardness ntawm steel pob yog txawv.

Lub pob kub dov ceev ceev txias lub pob hlau kub los ntawm cov txheej txheem quenching tshwj xeeb, ua rau cov austenite nyob rau hauv cov hlau microstructure sai sai tig mus rau hauv cov qauv martensite nrog hnyav hnyav hnyav, yog li nws yog qhov hardness tsim los ntawm quenching. Nws hardness tuaj yeem ncav cuag 63 ~ 65HRC.

Casting pob tsuas yog tso siab rau kev ntxiv qee qhov ntawm cov khoom sib xyaw chromium (Cr) ua kom cov pob steel muaj qee qhov hardness thiab hnav tsis kam. Qhov siab dua cov ntsiab lus Cr, qhov zoo dua qhov hardness thiab hnav tsis kam ntawm cov khoom, tab sis tus nqi ntawm cov khoom steel Qhov siab dua cov ntsiab lus Cr ntawm cov khoom hauv tsev siab chromium feem ntau yog 8 ~ 12%, hardness yog 55 ~ 59HRC; qhov tseeb high-alloy cam khwb cia pob muaj Cr mus txog 18%, thiab ib qho me me ntawm tungsten (W) ntxiv. Cov hlau tsis tshua muaj xws li molybdenum (Mo) muaj qhov tawv ntawm 60-62HRC thiab hnav tsis kam, tab sis tus nqi tsim khoom yog siab dua, thiab tus nqi muag khoom ib tuj yog ntau dua 14,000 yuan.

1.3. Qhov ntom yog txawv.

Vim tias lub pob kub dov siv cov hlau puag ncig uas tsim los ntawm kub dov thiab extruded square billet raws li cov khoom siv raw, thiab cov pob kub dov yog tsim los ntawm yob txoj kev thiab extrusion, qhov ceev ntawm lub pob kub dov yog feem ntau ntau dua. 7.85g / cm3 lossis ntau dua.

Vim hais tias lub pob casting siv cov txheej txheem molding xuab zeb, sab hauv thiab saum npoo ntawm lub pob steel yuav inevitably tsim pores thiab xuab zeb inclusions, thiab tseem muaj cov npoo pov tseg, yog li qhov ceev feem ntau qis dua 7.75g / cm3.

1.4. Lub uniformity ntawm qhov zoo yog txawv.

Vim tias lub pob kub dov yog ua los ntawm cov hlau tiav, qhov zoo sib xws, thiab cov hlau puag ncig nkag mus rau hauv lub tshuab cua sov cua sov → dov zeb → quenching tshuab → tempering rauv → txias lub rooj → ntim, tag nrho cov txheej txheem tsim tau pom. qhov loj-scale ntau lawm ua hauj lwm hom ntawm automated los ua ke kab. Cov txheej txheem tsis xws li kev ceev thiab ceev yog tswj los ntawm lub computer, uas yuav pab tau kom ruaj khov thiab uniform ntau lawm zoo.

Cov seem hlau siv hauv lub pob casting nws tus kheej muaj cov khoom tsis sib xws. Nyob rau tib lub sijhawm, qhov sib piv batching thiab casting ceev ntawm txhua lub cub tawg tau cuam tshuam zoo heev los ntawm tib neeg cov yam ntxwv, thiab kev txuas ntxiv ntawm cov txheej txheem tsim khoom yog qhov nyuaj los xyuas kom meej, yog li cov khoom lag luam tsis yooj yim kom ruaj khov.

1.5. Impact toughness thiab crush resistance yog txawv.

Vim lub siab ceev ntawm cov khoom kub-kuav los tiag, cuam tshuam toughness ≥7J / C㎡ (cov khoom loj nrog txoj kab uas hla ntawm 100mm lossis ntau dua ≥18J / C㎡), 6m siab poob pob kuaj qaug zog lub neej ≥10000 zaug (kev lag luam tus qauv yog 3.5 m siab poob pob kuaj qaug zog lub neej ≥8000 zaug), yog li tus nqi tawg yog tsawg heev.

Vim yog kev tsim khoom tsis xws luag xws li pores thiab xuab zeb inclusions, casting pob feem ntau muaj kev cuam tshuam toughness ≤ 4 (J / C ㎡), thiab tsis zoo rau crushing. Kev ntsuas pob poob tsis tuaj yeem ua tau, yog li tus nqi crushing yuav siab dua.

Tsis ntev los no, nrog rau qhov loj-scale zeb txoj kab uas hla, qhov yuav tsum tau rau cov kev cuam tshuam toughness thiab crush kuj ntawm cov sib tsoo steel pob tau dhau los ua siab dua thiab siab dua, tshwj xeeb tshaj yog rau cov cam khwb cia cov khoom siv zeb nrog ib txoj kab uas hla ntawm ntau tshaj 8 meters, uas tsis muaj peev xwm. ntev ua tau raws li qhov xav tau ntawm lawv cov kev ua haujlwm.

Hauv cov ntsiab lus, cov pob kub dov thiab cov pob cam khwb cia yog ob hom pob nrog cov ntsiab lus sib txawv. Tus qub tsis yog tsuas yog superior hauv kev ua tau zoo, tab sis kuj muaj kev ua haujlwm siab hauv kev tsim khoom, ib puag ncig tus phooj ywg thiab txuag hluav taws xob hauv cov txheej txheem ntau lawm. Nws tuaj yeem siv ntau hom kev ua haujlwm loj ntawm cov kab sib dhos, thaum siv cov khoom siv cam khwb cia hlau loj. , Muaj kuab paug ntau, kev siv hluav taws xob ntau, kev ua haujlwm tsawg. Kev hloov cov khoom cam khwb cia los ntawm cov khoom kub-kuav los tiag yog qhov tsis muaj kev cuam tshuam rau kev lag luam steel pob kom ua tiav lub zog txuag, emission txo thiab txhim kho kev lag luam. Nyob rau tib lub sijhawm, kev siv cov khoom kub-kuav los tiag steel pob kuj yog ib qho kev ntsuas zoo rau cov lag luam muaj feem xyuam los txo cov nqi thiab txuag peev.