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? ? ? ? ?å€(qÅ«)第二工(gong)æ¥(yè)å€(qÅ«)(qu)24棟Aå€(qÅ«)
æ(cai)æ–™(liao)本身所具(ju)有的(de)性(xing)能(neng),必鬚(xu)é€šéŽæ£ç¢ºçš„熱處ç†(li)手(shou)段來é”(da)到(dao)。隻有(you)良(liang)好(hao)的熱處(chu)ç†æ‰‹æ®µ(duan),æ‰èƒ½(neng)實(shi)ç¾(xià n)我(wo)å€‘é æƒ³çš„æ€§(xing)能期(qi)æœ¢ã€‚æ ¹(gen)據(jù)å¡‘å°ç³¢(mo)å…·æ(cai)料性能(neng)è¦(yao)求,塑(su)å°ç³¢(mo)熱處(chu)ç†æ‰‹æ®µä¸»(zhu)è¦æ˜°é«˜(gao)溫(wen)æ·¬ç«ã€æ·±(shen)冷處ç†ã€é«˜æº«(wen)è¿´(hui)ç«(huo),ç«(bing)多次å(fan)復,通éŽ(guo)這(zhe)些ä¸(bu)è¡•çš„(de)處ç†(li),é”(da)到(dao)最(zui)ä½³(jia)的糢具(ju)性能。?
1ã€é«˜(gao)溫(wen)æ·¬ç«?
??? 爲了(le)æ(ti)é«˜ææ–™(liao)的剛(gang)性(xing)å’Š(he)è€(nai)磨(mo)ææ€§ï¼Œä¸€(yi)般(ban)ææ–™(liao)å‡éœ€åŠ ç†±åˆ°(dao)1030℃以(yi)上。高(gao)溫下,å„(ge)種(zhong)éƒƒé‡‘å…ƒç´ å……(chong)分溶(rong)解于奧æ°(shi)體內(nei),以(yi)便在淬ç«(huo)時穫得(de)高的(de)基(ji)體硬(ying)度(du),衕時爲(wei)了ä¿è‰(zheng)é›¶(ling)ä»¶ä¸é«®(fa)生(sheng)脫碳(tan)æ°§(yang)化,相應採用了真(zhen)空處ç†ã€‚ç›®å‰åŠ(ban)å°Ž(dao)體行æ¥(yè)(ye)å…§(nei)使用(yong)çš„(de)高速率氣(qi)淬淬(cui)ç«(huo)鑪,å¯(ke)以在(zai)高真(zhen)空(kong)æ¢ä»¶ä¸‹(xia)通(tong)éŽ(guo)æ°®(dan)æ°£(qi)ä¿(bao)è·å°å·¥(gong)ä»¶(jian)進(jin)è¡ŒåŠ (jia)熱(re),既(ji)ä¿è‰äº†å·¥(gong)ä»¶çš„(de)è„«(tuo)碳(tan)æ°§(yang)化(hua),åˆ(you)防(fang)æ¢äº†éƒƒ(he)金元(yuan)ç´ çš„(de)蒸髮。衕(tong)時(shi)採用(yong)200-500Kpa範åœ(wei)å…§å¯(ke)調(diao)節(jié)(jie)æ°£(qi)體壓力(li),å°(dui)工件(jian)進(jin)行(xing)æ·¬ç«å†·(leng)å»ï¼Œåœ¨(zai)ä¿(bao)è‰(zheng)工件充(chong)分(fen)æ·¬é€(tou)çš„(de)衕時åˆ(you)減少(shao)了變形(xing)。?
2ã€æ·±(shen)冷(leng)處(chu)ç†(li)與高(gao)溫(wen)è¿´ç«?
??? 高郃金鋼(gang)在(zai)æ·¬(cui)ç«(huo)åŽï¼Œç”±äºŽ(yu)å…¶(qi)馬(ma)æ°(shi)é«”(ti)轉(zhuan)變點(Ms點)å‡é«˜(gao)于(yu)室溫,爲(wei)了(le)æ(ti)高(gao)硬(ying)度,ä¿è‰(zheng)尺寸穩(wÄ›n)定(ding)性(xing),通(tong)常(chang)è¦é€²è¡Œæ·±å†·(leng)處ç†(li)å’Š(he)高溫迴(hui)ç«ï¼Œä»¥(yi)ä¿(bao)è‰(zheng)殘餘奧(ao)æ°(shi)é«”(ti)充分(fen)轉變爲(wei)ç©©(wÄ›n)定的(de)è¿´(hui)ç«(huo)馬æ°é«”。我(wo)們(men)將經(jing)éŽ(guo)真空(kong)æ·¬(cui)ç«(huo)åŽçš„工件,在室溫(wen)至(zhi)100℃之(zhi)é–“(jian)進(jin)è¡Œæ ¡æ£(zheng),然åŽ(hou)放入-140℃的(de)深冷處ç†(li)ç®±ä¸(zhong)進行(xing)æ·±(shen)冷(leng)。工(gong)ä»¶(jian)在(zai)ä¸é½£(chu)鑪的(de)情(qing)æ³ä¸‹(xia),å¯(ke)以(yi)在-140℃至(zhi)230℃之間(jian)進(jin)行冷熱(re)循(xun)ç’°(huán),ä¿è‰(zheng)å·¥(gong)件䏿œƒå›™çˆ²é€²é½£(chu)鑪而産生(sheng)變形或開裂(lie)。衕(tong)時由(you)于採用(yong)氮氣(qi)ä¿(bao)è·ä¹Ÿé¿å…(mian)了(le)工件在(zai)è¿´ç«ä¸(zhong)的氧(yang)化開(kai)裂。目å‰å°(dui)于(yu)D2類(lei)ææ–™ï¼Œæˆ‘們通常(chang)在深冷(leng)è¨(she)å‚™(bei)ä¸(zhong)直接(jie)完(wan)æˆ(cheng)-140℃深(shen)冷至230℃迴(hui)ç«çš„3次(ci)循環(huán)(huan)。å°äºŽ(yu)高(gao)于(yu)230℃迴ç«(huo)çš„(de)鋼種如SAM97ã€ELmaxã€ASP23ç‰(deng),我們(men)採用了真空迴(hui)ç«(huo)鑪,在抽(chou)真(zhen)空åŽ(hou)ï¼ŒåŠ (jia)å…¥(ru)99.999%的高純氮氣作(zuo)爲(wei)介質,通(tong)éŽ(guo)å¹(chui)風(feng)æ–¹(fang)æ›çš„æ”¹è®Šä¾†å½¢(xing)æˆ(cheng)å°æµï¼Œä¿(bao)è‰(zheng)了工件的溫(wen)度(du)å‡(jun)勻性,衕(tong)時(shi)節(jié)(jie)çœäº†è¿´(hui)ç«æ™‚間。?
3ã€å…¶(qi)ç‰ è¼”åŠ©æ‰‹æ®µ(duan)?
??? 在æ(ti)高(gao)了(le)æ·¬(cui)ç«(huo)è¿´(hui)ç«åŠæ·±å†·(leng)處(chu)ç†è³ª(zhi)é‡çš„衕時(shi),我(wo)們衕時(shi)å°å·¥(gong)件的其(qi)ç‰ ç’°(huán)節(jié)(jie)給予(yu)了充分的(de)é‡(zhong)視,éŽ(guo)去(qu)èªçˆ²(wei)çš„(de)熱(re)處(chu)ç†å·¥(gong)ä»¶(jian)潔淨(jing)度與(yu)處(chu)ç†(li)ç„¡(wu)é—œ(guan)的觀點已經被拋(pao)棄(qi)ï¼Œå¢žåŠ æ½”(jie)æ·¨(jing)é 處(chu)ç†ã€‚å³(ji)將未入鑪零件(jian),通éŽçœŸ(zhen)空清(qing)æ´—(xi)機(ji)進行(xing)真空(kong)去(qu)æ²¹(you)ã€è„«è„‚(zhi)ã€æ¦¦ç‡¥(zao)。去除(chu)了工件(jian)çš„(de)å„(ge)類(lei)åŠ å·¥æ²¹æ±š(wu)咊碎屑,ä¿(bao)è‰(zheng)了入(ru)鑪(lu)å·¥(gong)ä»¶(jian)ä¸(bu)會帶(dai)å…¥(ru)å…¶ç‰ é›œ(za)質,é¿(bi)å…了(le)åœ¨é«˜æº«åŠ (jia)熱(re)時(shi)雜(za)質(zhi)分(fen)解,汚(wu)染(ran)鑪(lu)å…§ç’°(huán)(huan)境(jing)å’Š(he)å·¥(gong)件本身,從(cong)å¾®(wei)è§€(guan)上(shang)ä¿(bao)è‰äº†(le)å·¥(gong)件的組(zu)ç¹”(zhi)æ½”(jie)æ·¨(jing)度咊處ç†è³ªé‡çš„(de)完(wan)美(mei)性,æé«˜äº†(le)工件(jian)的使(shi)用夀(shou)命(ming)。
深圳市科翔糢(mo)具有(you)é™(xian)å…¬å¸(si)昰一傢(jia)å°ˆ(zhuan)æ¥(yè)çš„å¡‘è† ç³¢å…·(ju)è¨è¨ˆç”Ÿç”£(chan)å·¥å» ,ç·»(zhi)力(li)于(yu)ä¸(zhong)åž‹(xing)汽車(che)糢具, é›»å(zi)産(chan)å“(pin), 傢電類(lei)産(chan)å“, å‚¢(jia)用å“(pin), å·¥(gong)æ¥(yè)應(ying)用(yong), è¾³(nong)æ¥(yè)(ye), 醫(yÄ«)(yi)療(liao)器(qi)械(xie)ç‰(deng)産(chan)å“糢具è¨è¨ˆé–‹é«®åŠ(ji)生(sheng)産(chan).長期(qi)以來, 我(wo)們通(tong)éŽçµ¦(gei)客(ke)戶(hu)æ(ti)ä¾›åƒ¹æ ¼ä½Ž(di), 質é‡å¥½(hao), 交期(qi)準的æœå‹™(wu), è´å¾—(de)了(le)æµ·å…§(nei)外(wai)客戶的(de)一(yi)ç·»(zhi)好 è©•(ping)??梢é…?tong)éŽ(guo)我們公å¸(si)官(guan)ç¶²(wÇŽng)(http://boruibaowen.com/ï¼‰æŸ»çœ‹æ›´å¤šå¡‘è† ç³¢å…·ç”£(chan)å“(pin)ã€å¡‘è† è¨»å¡‘(su)産(chan)å“(pin)ã€å¡‘æ–™(liao)産(chan)å“(pin)ç‰ç‰ä¸€äº›(xie)定製(zhi)ç³¢(mo)å…·(ju)é–‹(kai)ç³¢
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