Cov khoom siv rau cov thoob thiab cov ntsia hlau
Kev xaiv cov khoom siv rau cov thoob thiab cov ntsia hlau ncaj qha txiav txim siab cov cuab yeej hnav tsis kam, corrosion kuj, thiab kev pabcuam lub neej. Tam sim no, cov ntaub ntawv tseem ceeb poob mus rau plaub yam tseem ceeb: nitrided steel, bimetallic composites, stainless hlau, thiab tag nrho cov tawv tawv hmoov alloys. Kev xaiv yuav tsum muaj kev sib raug zoo raws li cov yam ntxwv tshwj xeeb ntawm cov yas tau ua tiav (xws li, txawm tias lawv muaj cov iav fibers los yog corrosive).
1. Nitrided Steel: Tus Nqi -Kev Xaiv Zoo rau General-Plastics Lub Hom Phiaj
Qhov no yog tam sim no cov khoom siv dav siv ntau tshaj plaws, tshwj xeeb tshaj yog tsim rau kev ua cov khoom yas (xws li PP, PE, ABS, PS, thiab lwm yam).
Cov Qib Cov Neeg Sawv Cev: 38CrMoAlA (tus qauv classic), SACM645, thiab 42CrMo.
Cov txheej txheem tseem ceeb: Tom qab quenching thiab tempering kev kho mob, lub nto undergoes nitriding. Cov txheej nitrided feem ntau muaj qhov tob ntawm 0.4-0.6 hli, thiab qhov tawv tawv tuaj yeem ncav cuag HV900-1000.
Qhov zoo: Muaj cov khoom siv kho tshuab zoo, kev ua haujlwm zoo heev, thiab tus nqi nruab nrab.
2. Bimetallic Composites: Tus "Champion of Durability" rau siab -Hloov cov xwm txheej
Rau cov khoom siv abrasive heev-xws li iav fiber ntau- cov khoom siv yas thiab cov ntxhia pob zeb- cov khoom sib xyaw ua ke - cov ntaub ntawv bimetallic yog qhov kev xaiv zoo tshaj.
Cov yam ntxwv ntawm tus qauv: Ib txheej txheej tshwj xeeb alloy (xws li cobalt-raws li, npib tsib xee-raws li, lossis tungsten carbide alloys), feem ntau 2-3 hli tuab, yog centrifugally cam khwb cia lossis txau mus rau sab hauv phab ntsa ntawm cov hlau hlau substrate (xws li 45 # steel).
Kev Ua Haujlwm: Hnav tsis kam lub neej yog 3 mus rau 5 zaug ntev dua li cov qauv nitrided steel; hardness tuaj yeem ncav cuag tshaj HRC60, thiab siab -kub kuj yog qhov zoo heev.
Daim ntaub ntawv: Dav siv rau extrusion thiab txhaj tshuaj molding ntawm engineering yas reinforced iav fibers, xws li PA, PBT, thiab PC.
3. Stainless Hlau thiab Corrosion-Resistant Alloys: Qhov "Nemesis" ntawm Corrosive Materials
Thaum ua cov PVC, nplaim hluav taws- cov yas retardant, fluoroplastics, los yog kev kho mob- cov ntaub ntawv pob tshab, cov khoom siv corrosion kuj thiab purity yog qhov tseem ceeb heev. Cov Qib: 9Cr18MoV (Martensitic Stainless Steel), 316L, Titanium Alloys.
Cov yam ntxwv: Tom qab dhau los ntawm- hardening, 9Cr18MoV ua tiav qhov hardness ntawm HRC 55–58; nws tsis tsuas yog muaj kev tiv thaiv corrosion zoo heev tab sis kuj tseem tiv thaiv cov chrome plating uas tuaj yeem ua rau cov khoom tsis zoo - ua kom nws haum rau cov khoom pob tshab xws li cov khoom ua los ntawm PC lossis PMMA.
Qhov zoo: Ua tiav tshem tawm cov kab mob sib kis los ntawm cov ntsiab lus hlau, pom muaj zog tiv thaiv cov kua qaub thiab alkali corrosion, thiab ua kom lub purity ntawm cov khoom xim.
