热处理
熱處理
열처리
Heat Treatment
2015年
5期
15-18
,共4页
T4 镀锡板%退火%时效
T4 鍍錫闆%退火%時效
T4 도석판%퇴화%시효
T4 tinplate%annealing%aging
采用 GLEEBLE 3500热模拟试验机对 T4镀锡板进行了退火试验。采用 JSM-6490LV 扫描电子显微镜观察退火后 T4镀锡板试样的显微组织。使用 WILSON 2000T 洛氏硬度计测定了退火后试样的硬度。研究了时效工艺对 T4镀锡板试样退火后固溶碳及硬度的影响。结果表明，T4镀锡板的退火温度以620～640℃为宜。退火＋时效工艺能影响 T4镀锡板中的固溶碳含量，其中不经时效的T4镀锡板中的固溶碳含量增加最多，达到26％；欠时效的次之，固溶碳含量为23％，而过时效能使碳原子充分析出，增强镀锡板成品的抗时效性。
採用 GLEEBLE 3500熱模擬試驗機對 T4鍍錫闆進行瞭退火試驗。採用 JSM-6490LV 掃描電子顯微鏡觀察退火後 T4鍍錫闆試樣的顯微組織。使用 WILSON 2000T 洛氏硬度計測定瞭退火後試樣的硬度。研究瞭時效工藝對 T4鍍錫闆試樣退火後固溶碳及硬度的影響。結果錶明，T4鍍錫闆的退火溫度以620～640℃為宜。退火＋時效工藝能影響 T4鍍錫闆中的固溶碳含量，其中不經時效的T4鍍錫闆中的固溶碳含量增加最多，達到26％；欠時效的次之，固溶碳含量為23％，而過時效能使碳原子充分析齣，增彊鍍錫闆成品的抗時效性。
채용 GLEEBLE 3500열모의시험궤대 T4도석판진행료퇴화시험。채용 JSM-6490LV 소묘전자현미경관찰퇴화후 T4도석판시양적현미조직。사용 WILSON 2000T 락씨경도계측정료퇴화후시양적경도。연구료시효공예대 T4도석판시양퇴화후고용탄급경도적영향。결과표명，T4도석판적퇴화온도이620～640℃위의。퇴화＋시효공예능영향 T4도석판중적고용탄함량，기중불경시효적T4도석판중적고용탄함량증가최다，체도26％；흠시효적차지，고용탄함량위23％，이과시효능사탄원자충분석출，증강도석판성품적항시효성。
Annealing tests of T4 tinplate were performed by a GLEEBLE 3500 simulated tester.For the as-annealed T4 tinplate samples,microstructures were observed by JSM-6490LV SEM,and hardness was measured by WILSON 2000T Rockwell hardness tester.The influence of aging process on solution carbon content and hardness of the annealed T4 tinplate samples was investigated.The results show that annealing temperatures suitable for the T4 tinplate are 620 to 640 ℃,and that annealing plus aging will have an effect on the solution carbon content and hardness of the T4 tinplate,the solution carbon content being 26% maximum in the T4 tinplate annealed and not aged,and 23% in the T4 tinplate annealed and underaged.In addition,overaging treatment will cause carbon atom to precipitate fully,thus rendering the aging resistance of finished tinplate better.
