中国特种设备安全
中國特種設備安全
중국특충설비안전
CHINA SPECIAL EQUIPMENT SAFETY
2015年
4期
65-67
,共3页
裂纹%应力集中%扩散氢%焊接工艺%热处理
裂紋%應力集中%擴散氫%銲接工藝%熱處理
렬문%응력집중%확산경%한접공예%열처리
Crack%Stress concentration%Diffusible hydrogen%Welding procedure%Heat treatment
鲁奇固态排渣加压气化炉成本低、效益高,在煤化工领域得到广泛应用。其本体采用的BHW35钢(相当于13MnNiMo54)合金元素含量较高,淬硬倾向较大,在制造、返修过程中,如果工艺控制不当,容易产生冷裂纹和再热裂纹,再加上气化炉特殊的操作工艺,频繁的升压、降压,使用中更容易诱发裂纹。本文着重分析气化炉壳体产生裂纹的原因,并提出应对措施。
魯奇固態排渣加壓氣化爐成本低、效益高,在煤化工領域得到廣汎應用。其本體採用的BHW35鋼(相噹于13MnNiMo54)閤金元素含量較高,淬硬傾嚮較大,在製造、返脩過程中,如果工藝控製不噹,容易產生冷裂紋和再熱裂紋,再加上氣化爐特殊的操作工藝,頻繁的升壓、降壓,使用中更容易誘髮裂紋。本文著重分析氣化爐殼體產生裂紋的原因,併提齣應對措施。
로기고태배사가압기화로성본저、효익고,재매화공영역득도엄범응용。기본체채용적BHW35강(상당우13MnNiMo54)합금원소함량교고,쉬경경향교대,재제조、반수과정중,여과공예공제불당,용역산생랭렬문화재열렬문,재가상기화로특수적조작공예,빈번적승압、강압,사용중경용역유발렬문。본문착중분석기화로각체산생렬문적원인,병제출응대조시。
Luqi solid-state discharge pressurized gasifier with low cost and high efficiency, has been widely used in the coal chemical industry. Whose matrix with higer hardening tendency, is made of the BHW35 steel(equivalent to 13MnNiMo54) alloy element with higher content. It is easy to produce cold crack and reheat crack in the process of manufacture and repair if the process control is improper. Furthermore, the operation of the special gasifier craft, frequent step-up and step-down pressure, is more likely to induce cracks. The author emphatically analyses the reason of gasiifer shell crack, and puts forward the countermeasures in the article.