Unoziva nezveWC-10Co4Cr?

I. Kuumbwa Kwezvinhu uye Maumbirwo
WC-10Co4Cr (86% WC, 10% Co, 4% Cr) ndeye tungsten carbide-based alloy poda inogadzirwa kuburikidza neagglomeration uye sintering. Chimiro chayo chepakati chine tungsten carbide zvimedu zvakaputirwa necobalt (Co) uye chromium (Cr) simbi maseru, ichigadzira "core-shell" inoumbwa chidimbu chimiro. Iyi dhizaini inochengeta kuomarara kwakanyanya kwetungsten carbide uku ichiwedzera kuita kwese kwejasi kuburikidza nekubatanidza zvimiro zvecobalt uye kushora kwechromium.

II. Core Performance Hunhu
1. High Hardness uye Wear Resistance
- Iyo yakapfapfaidzwa yakapfapfaidza inogona kuwana kuoma kweHV> 1100, yakanyanya kukwirisa kupfuura iyo yesimbi yakajairwa, inonyatso ramba kupfeka abrasive, erosive kupfeka, uye kupfeka zvinoshungurudza.
- Miedzo yakaratidza kuti kuramba kwayo kupfeka kwakapfuura 1.3 nguva dzechinyakare alloy coatings, kunyanya yakatanhamara mumvura ine jecha kana nzvimbo dzine guruva.

2. Optimized Corrosion Resistance
- Kuwedzerwa kwechromium (Cr) kunonatsiridza zvakanyanya kusagadzikana kwekuora: Mune 3.5% NaCl munyu wekupfapfaidza mamiriro, iyo yakaderera-porosity coating inoratidzira yakakwira corrosion kuramba kune yakakwira-porosity sampu; zvisinei, kudzivirira kunogumira munzvimbo dzakasimba dzeasidhi (zvakadai seHCl).

3. High-Temperature Oxidation Resistance
- Iyo cobalt yakavharwa inoumba dense oxide firimu pakupisa kwakanyanya, kuderedza kuparara kwe tungsten carbide uye kuita kuti ive yakakodzera mamiriro ekushanda ari pasi pe800 ° C (semuenzaniso, injini zvikamu).

III. Industrial Applications
1. Heavy-Duty Wear-Resistant Parts

Kuchera Oiri: Drill makora, centralizers, uye madhaka pombi liners, kuramba grit kukukurwa.

Mechanical Manufacturing: Roller majenari, hydraulic piston rods, uye mold ejectors, kuwedzera hupenyu hwebasa ne3-5 nguva.

2. Corrosion-Wear Cooperative Environments

Marine uye Simba: Mvura yegungwa inofambisa pombi uye turbine blades, ichipa ese ari maviri egungwa kusaora kwemvura uye jecha-rakaremerwa kupfeka kuramba.

Chemical Equipment: Valve sealing surfaces uye pombi inoyerera ndima yechikamu, yakakodzera kune isina kusimba acid media.

3. High-Precision Surface Enhancement
Aerospace: Compressor blade tenons uye mapini ekumhara giya, kuvandudza kuramba kushushikana kupfeka.

IV. Mapoinzi Akakosha eSupersonic Velocity yeMhepo (HVOF) Maitiro

1. Upfu Kuenderana

-Shandisa hupfu hwakagadzirirwa HVOF (saizi yechikamu kazhinji 15-45 μm), kusiyana nepfapfaidzo yeplasma.

- Hygroscopic powders inoda pre-drying (120 ° C kweawa imwe) kudzivirira porosity panguva yekupfapfaidza.

2. Maitiro Zvakanakira
- Supersonic flame velocity (> 1500 m/s) uye tembiricha yakaderera (inenge 2800 ° C) inoderedza zvakanyanya WC decarburization uye kuora (decomposition rate - Coating porosity inogona kudzorwa kusvika

3. Parameter Muenzaniso
- Yakajairika parameters: Oxygen flow rate 56 m³/h, parafini 28 L/min, spray distance 380 mm, yunifomu micro-nanostructured coating yakawanikwa.

V. Pfupiso
WC-10Co4Cr, kuburikidza neiyo synergistic dhizaini ye "tungsten carbide + cobalt-chromium simbi chikamu," inoshandisa HVOF tekinoroji kugadzira yakanakira yekupfeka zvinhu inopa kupfeka, ngura, uye oxidation kuramba. Mabhenefiti ayo ekuita anonyanya kutariswa mumamiriro ekushanda akaomarara (sekuchera simba, midziyo yekumahombekombe, uye aerospace). Tsvagiridzo yeramangwana iri kuongorora kushandiswa kwenanoparticles (semuenzaniso, kuwedzera 0.8–2 μm boron carbide) kuwedzera kusimba kwekupfeka uye kusimba.