Vim li cas SUS316 Dominates Nqus Tsev -Kev Pab Cuam Lub Cev Muaj Zog Tshaj 304 lossis Titanium Alloys

VABB koob yuav tsum nkag mus rau ntawm daim tawv nqaij, rog, thiab fibro- cov ntaub so ntswg ntawm lub mis, nyob rau hauv siab - ceev rotational txiav nyob rau hauv lub tshuab nqus tsev ntau zaus. Qhov no imposes plaub yam tseem ceeb xav tau: txaus puncture nruj, txiav ntug hnav tsis kam, zoo heev corrosion kuj (tiv thaiv lub cev thiab ntxuav residues), thiab biocompatibility (ISO 10993). SUS316/316L txoj cai raws li kev lag luam benchmark stems los ntawm qhov zoo heev.

SUS316 vs. SUS304-Corrosion Resistance yog faib

Ob leeg yog austenitic stainless hlau, tab sis 316 muaj 2-3% Molybdenum (Mo), ua kom muaj zog tiv thaiv pitting thiab crevice corrosion. Tom qab electropolishing, residual kab chlorides (los ntawm cov tshuaj ntxuav tes los yog cov kua nruab nrog cev) txo lub peev xwm pitting; 304 ua rau muaj kev cuam tshuam rau micro-pitting, ua rau ntev - lub sij hawm cia los yog huab hwm coj- rooj plaub muaj kev pheej hmoo corrosion. Txawm hais tias lub mis biopsy cov cuab yeej siv ib zaug - siv, lub txee lub neej yuav ntev li 2-3 xyoos tom qab- tsim khoom; 316L muaj kev ua yeeb yaj kiab zoo tshaj plaws. Hais txog hardness, txias- kos 316 ua tiav HRC 30–40 (HRB 70–90), ntsuas ntug tuav nrog qhov tsim nyog toughness.

Vim li cas titanium alloys lossis Nitinol tsis nyob txhua qhov chaw?

Titanium alloys (Qib 2/5) muaj biocompatibility zoo heev thiab tsawg ntom, tab sis lawv elastic modulus tsuas yog ~ 55% ntawm cov hlau. Rau qhov sib npaug sib npaug - cov hlab ntsa phab ntsa, qhov tawv nqaij tsis txaus-VABB koob yuav tsum tau axial rigidity nyob rau hauv tuab fibro-glandular cov ntaub so ntswg los tiv thaiv dabtsi yog khoov uas misaligns tus qauv notch. Ntxiv mus, titanium yog rhiab heev rau laser txiav tsis, thiab electropolishing chemistry sib txawv heev, escalating mass - cov nqi tsim khoom. Nitinol's superelasticity tsis muaj qhov zoo sib xws rau kev ncaj, rotating txiav koob thiab ntxiv complexity nrog theem transformation kub tswj; Yog li, nws tsuas yog xav tau rau niche saj zawg zog probes.

Kev soj ntsuam lom neeg & RoHS ua raws

TS EN ISO 10993-1 Kev soj ntsuam kev lom neeg: cytotoxicity (MTT assay), sensitization (maximization test), hemolysis (<5%), intracutaneous reactivity, and acute systemic toxicity. Materials must comply with RoHS 2.0 (2011/65/EU & 2015/863), restricting Cd/Pb/Hg/Cr⁶⁺/PBB/PBDE and four phthalates, supported by BOM-level material certifications and SGS reports.

Cold Work Hardening & Localized Heat Trends Trends

Qee cov kab siab dhau los siv hauv cheeb tsam qis- qhov kub thiab txias rau kev txiav cov npoo los yog siv nag lossis daus- cov hlau tsis muaj zog (xws li 17-4PH) rau cov qauv sib txawv hardness- lub raj sab nraud (316L), siab -hardness puab txiav ntug (HRC 48). Ceeb toom: 17-4PH passivation txawv ntawm 316 raws tu qauv; Cov khoom sib xyaw ua ke muaj kev pheej hmoo galvanic corrosion. Qhov no sawv cev rau txoj hauv kev hloov pauv tseem ceeb rau cov koob VABB tom ntej.

Hauv cov ntsiab lus, SUS316/316L, txhawb nqa los ntawm kev ua kom paub tab, muaj pov thawj corrosion kuj, kev tswj hwm -raws li biocompatibility, thiab tus nqi tsim nyog, tseem yog qhov tseem ceeb tshaj plaws thiab tau txais kev kho mob substrate rau Nqus Tsev-Kev Pab Cuam Lub Cev.