QQZAIXIAN:
ALIWANGWANG:
JINRILAI,GONGSIXIAOSHOUDIANRESIDENGXIANGGUANCHANPINDESHIHOU,JINGCHANGHUIYONGDAO“TUIHUO”ZHEIGEGUANJIANCI,JINGCHANGYOUKEHUDUITUIHUOZHEIGEMINGCIBUSUANTAILEJIEHUOSHIGENBENJIUBUDONG,SUOYI,YANCHENGYUHENGDIANREKEJIYOUXIANGONGSITEDIZHENGLILE,KEHUGUANYUTUIHUODEYIXIEYIWEN,BINGHEDAJIAFENXIANG。
问题1:什么是退火,退火的定义?
DAYI:JIANGDIANRESIJIAREDAOSHIDANGWENDU,BAOCHIYIDINGSHIJIAN,RANHOUHUANMANLENGQUE(YIBANSUILULENGQUE)DERECHULIGONGXUCHENGWEITUIHUO。
TUIHUODEZHUYAOMUDE:
1、JIANGDIGANGDEYINGDU,TIGAOSUXING,YILIYUQIEXUEJIAGONGJILENGBIANXINGJIAGONG。
2、XIHUAJINGLI,JUNYUNGANGDEZUZHIJICHENGFEN,GAISHANGANGDEXINGNENGHUOWEIYIHOUDEDERECHULIZUOZHUNBEI。
3、XIAOCHUGANGZHONGDECANYUNEIYINGLI,YIFANGZHIBIANXINGHEKAILIE。
问题2:经过退火处理的电热丝为什么会变黑?
DAYI:YUHENGJISHURENWEISHIDIANRESIBIAOMIANYANGHUALE,SUOYIKANSHANGQUXIANGHEISE。
问题3:退火为什么能降低电热丝的硬度?
DAYI:TUIHUOHOUDEZUZHIZHUYAOSHIZHUGUANGTIZUZHI, XIANGDUIXIABEISHITIHEMASHITIDEYINGDUZEXIAOXIE.
问题4:为什么退火可以降低硬度?
DAYI:DIANRESIZAIJIAREXINGCHENGLEAOSHITI,GENJUMUDEDEBUTONG,ZIGAOWENHUANMANDIHUOKUAISUDILENGQUE,SHIZHIFASHENGZHUANBIAN。
AOSHITIZAIBUTONGDEWENDUZHUANBIANSHI,QIZHUANBIANCHANWUSHIBUXIANGTONGDE,XINGNENGYEYOUHENDADECHAYI。
HUANMANDELENGQUEDEDAOSHIYICENGSHENTANTIYICENGTIESUTIDEHUNHEWU——ZHUGUANGTI;ERKUAISULENGQUEDEDAODESHIMASHITI,ERAOSHITISHIMEIYOUYINGDUDE,ERMASHITISHIYOUYINGDUDE。RECHULIDECUIHUODEDAODEJIUSHIMASHITIZUZHI。