Hnub no, kuv yuav coj koj mus rau Donghuan Malleable Iron Casting Co., Ltd. Cia peb kawm txog cov txheej txheem casting ntawm coated xuab zeb.
I.Kev paub thiab kev nkag siab ntawm cov xuab zeb coated
1. Nta ntawm coated xuab zeb
Nws muaj peev xwm ua tau zoo;zoo fluidity, npaj cov xuab zeb pwm thiab xuab zeb cores muaj meej contours thiab ntom qauv, uas yuav ua tau complex xuab zeb cores;xuab zeb pwm (cores) muaj qhov zoo ntawm qhov zoo, thiab qhov roughness ntawm qhov chaw tuaj yeem ncav cuag Ra = 6.3 ~ 12.5μm, qhov tseeb qhov tseeb tuaj yeem ncav cuag qib CT7 ~ CT9;lub collapsibility yog zoo, thiab lub casting yog yooj yim los ntxuav.
2. Scope ntawm daim ntawv thov
Coated xuab zeb tuaj yeem siv los ua pwm thiab cov xuab zeb cores.Cov pwm lossis cov cores ntawm cov xuab zeb coated tuaj yeem siv ua ke nrog ib leeg lossis nrog lwm cov xuab zeb pwm (cores);Nws tuaj yeem siv tsis tau tsuas yog siv rau hlau nqus casting lossis qis-siab casting, tab sis kuj tseem siv tau rau cov xuab zeb-coated hlau casting thiab thermal centrifugal casting;Nws tuaj yeem siv tsis tau tsuas yog rau kev tsim cov cam khwb cia hlau thiab cov hlau tsis muaj hlau, tab sis kuj rau kev tsim cov hlau castings.
II.Kev npaj ntawm coated xuab zeb
1. Kev sib xyaw ntawm cov xuab zeb coated
Nws feem ntau yog tsim los ntawm cov ntaub ntawv refractory, binders, curing agents, lubricants thiab tshwj xeeb additives.
2. Cov txheej txheem ntau lawm ntawm coated xuab zeb
Cov txheej txheem ntawm cov xuab zeb coated feem ntau suav nrog txheej txheej txias, txheej sov, thiab txheej thermal.Tam sim no, yuav luag tag nrho cov khoom ntawm coated xuab zeb txais cov txheej txheem kub txheej.
3. Cov khoom tseem ceeb ntawm cov xuab zeb coated
(1) Ordinary coated xuab zeb yog tsoos coated xuab zeb
(2) High-strength thiab low-gassing hom coated xuab zeb
Nta: siab zog, tsis tshua muaj expansion, tsis tshua muaj roj, roj qeeb, anti-oxidation
(3) Kub resistant (hom) coated xuab zeb (ND hom)
Nta: kub tsis kam, siab zog, tsis tshua muaj expansion, tsis tshua muaj roj, roj qeeb, yooj yim rau vau, anti-oxidation
(4) Yooj yim collapsible coated xuab zeb
Nws muaj lub zog zoo thiab kev ua haujlwm zoo ntawm qhov kub thiab txias, haum rau kev tsim cov hlau tsis muaj hlau.
(5) Lwm yam tshwj xeeb yuav tsum tau coated xuab zeb.
III.Cov txheej txheem tseem ceeb ntawm cov tub ntxhais ua nrog coated xuab zeb
Cov cua kub kub yog 200-300 ℃, lub sijhawm kho yog 30-150s, thiab xuab zeb tua siab yog 0.15-0.60MPa.Rau cov xuab zeb cores nrog cov duab yooj yim thiab coated xuab zeb nrog zoo fluidity, qis dua qhov siab tuaj yeem xaiv.Rau nyias cov xuab zeb cores, ib qho qis cua sov tuaj yeem xaiv tau.Thaum cov cua kub kub qis, lub sijhawm kho tuaj yeem txuas ntxiv kom tsim nyog.Cov resin siv hauv coated xuab zeb yog phenolic resin.Qhov zoo ntawm cov txheej txheem tseem ceeb: tsim kom muaj zog ua haujlwm;zoo fluidity;zoo nto zoo ntawm cov xuab zeb core (Ra = 6.3-12.5μm);muaj zog noo noo tsis kam ntawm cov xuab zeb core;zoo collapsibility thiab yooj yim tu ntawm castings.
1. Pwm (pwm) kub
Cov pwm kub yog ib qho tseem ceeb cuam tshuam rau lub thickness thiab lub zog ntawm lub plhaub txheej, feem ntau tswj ntawm 220 ~ 260 ℃
2. Sand shooting siab thiab lub sijhawm
Lub sij hawm xuab zeb tua feem ntau yog tswj ntawm 3 ~ 10s.Yog tias lub sijhawm luv luv, cov xuab zeb pwm (core) tsis tuaj yeem tsim.Cov xuab zeb tua siab yog feem ntau txog 0.6MPa;thaum lub siab tsawg dhau lawm, nws yog ib qho yooj yim ua rau tsis txaus tua lossis xoob.Lub sij hawm hardening: Qhov ntev ntawm lub sij hawm hardening feem ntau nyob ntawm lub thickness ntawm cov xuab zeb pwm (core) thiab kub ntawm pwm, feem ntau nyob ib ncig ntawm 60-120s.
Tam sim no, peb cov khoom tseem ceeb yog malleable hlau yeeb nkab fittings, raj clamps, thav duab connectors, cua hose couplings, ob chav ntsia liaj qhov rooj clamps, ib tug ntsia liaj qhov rooj hose clamps, camlock couplings, ceev couplings, conduit lub cev, KC txiv mis, hose menders thiab ntau tshaj 175,000. cov khoom rau koj xaiv.Txais tos rau Donghuan Malleable Hlau Casting rau kev nug, peb yuav ua siab ncaj ntawm koj qhov kev pabcuam.
Post lub sij hawm: Dec-22-2021