专用汽车
專用汽車
전용기차
SPECIAL PURPOSE VEHICLE
2011年
10期
66-68
,共3页
高空作业车%油缸活塞杆%热处理%45钢
高空作業車%油缸活塞桿%熱處理%45鋼
고공작업차%유항활새간%열처리%45강
aerial platform vehicle%piston-rod%heat-treatment%45 steel
高空作业车油缸活塞杆材质选用的是调质处理后的45钢。在使用中发现有些普通调质处理的45钢在油缸活塞杆基体中存在网状铁素体，影响其强度和冲击韧性，易造成活塞杆断裂。由此提出了一种基于低温奥氏体化和油淬的45钢油缸活塞杆热处理新工艺。结果表明该工艺可抑制回火索氏体基体中出现的网状铁素体，有效提高材料强度和冲击韧性，可以完全满足高空作业车油缸活塞杆的使用要求。
高空作業車油缸活塞桿材質選用的是調質處理後的45鋼。在使用中髮現有些普通調質處理的45鋼在油缸活塞桿基體中存在網狀鐵素體，影響其彊度和遲擊韌性，易造成活塞桿斷裂。由此提齣瞭一種基于低溫奧氏體化和油淬的45鋼油缸活塞桿熱處理新工藝。結果錶明該工藝可抑製迴火索氏體基體中齣現的網狀鐵素體，有效提高材料彊度和遲擊韌性，可以完全滿足高空作業車油缸活塞桿的使用要求。
고공작업차유항활새간재질선용적시조질처리후적45강。재사용중발현유사보통조질처리적45강재유항활새간기체중존재망상철소체，영향기강도화충격인성，역조성활새간단렬。유차제출료일충기우저온오씨체화화유쉬적45강유항활새간열처리신공예。결과표명해공예가억제회화색씨체기체중출현적망상철소체，유효제고재료강도화충격인성，가이완전만족고공작업차유항활새간적사용요구。
Piston-rods in aerial performance vehicles are made with thermal refined 45 steel. It has been found that ferrite nets could be formed in 45 steel after normal refining treatment, which decreases the strength and impact toughness of the material and could lead to the fracture of the piston-rod. In the present work, a new heat-treatment process based on low-temperature austenitizing and oil quenching was developed. The results show that ferrite nets could be eliminated by using the new process, the strength and toughness of the material are efficiently improved to ensure the application in piston-rods for high-altitude engineering vehicles.
