東莞鍛造-鍛造的種類和特點

　　東莞鍛造-鍛造的種類和特點

　　當溫度超過300 ° c-400 ° c (鋼的藍脆帶) 
，達到700 ° c-800 ° c 時，變形抗力急劇下降
，變形能大大增加。根據不同溫度區域的鍛造條件，根據鍛造質量和鍛造工藝要求的不同，可將鍛件分為冷鍛
、溫鍛和熱鍛。一般來說
，在再結晶溫度下鍛造稱為熱鍛造，而在室溫下不加熱的鍛造稱為冷鍛造。鍛件尺寸在低溫下變化不大。在700 ° c deduanzaotiaojianxia，biaomianyanghuapihenshao，meiyoufushixianxiang。zhiyaochengxingnengliangzaichengxingnengliangfanweinei，lengduanjiuhenrongyidadaolianghaodechicunjingduhebiaomianchuli。zhiyaokongzhiwendu，runhualengque，700 °c yixiadewenduanjingdushihenhaode。zaireduanguochengzhong
，xingzhuangfuzadedaduanjianyouyuqibianxingnenghebianxingnengjiaoxiao，keyiduanzaochengxing。weilehuodejiaogaodeyubaojingdu，kezai900 ° c-1000 ° c 溫度範圍內進行熱鍛
，並改善熱鍛工作環境。鍛模(熱鍛2ー5000、熱鍛1ー20000、冷鍛2ー50000)的壽命比其它溫度範圍的短，但自由度大，成本低。

　　youyuduanpizailengduanguochengzhonghuichanshengbianxingheyinghua，shiduanmochengshoujiaodadefuhe
，yincixuyaocaiyonggaoqiangdudeduanmoheyingzhirunhuamolaifangzhimosunhefuzhe。lingwai，weilefangzhipiliaokailie，biyaoshijinxingzhongjiantuihuo
，yibaozhengsuoxudebianxingnengli。weilebaochilianghaoderunhuazhuangtai，keduipiliaojinxinglinhua。muqian，bangxiancailianxujiagong，xingcaiwufarunhua。yanjiulelinhuarunhuadekenengxing。genjupiliaodeyundongfangshi，duanzaokefenweiziyouduanzao、鐓粗
、擠壓、模鍛、閉bi式shi模mo鍛duan和he閉bi式shi鐓dui粗cu。閉bi式shi模mo鍛duan和he閉bi式shi鐓dui粗cu由you於yu無wu飛fei邊bian
，材cai料liao利li用yong率lv較jiao高gao。用yong一yi種zhong或huo多duo種zhong工gong藝yi完wan成cheng複fu雜za鍛duan造zao是shi可ke能neng的de。由you於yu沒mei有you飛fei邊bian
，鍛duan件jian的de受shou力li麵mian積ji減jian小xiao，所suo需xu負fu荷he也ye減jian少shao。但dan應ying注zhu意yi的de是shi，嚴yan格ge控kong製zhi毛mao坯pi體ti積ji，控kong製zhi鍛duan模mo相xiang對dui位wei置zhi和he測ce量liang鍛duan件jian以yi減jian少shao鍛duan模mo磨mo損sun，不bu能neng完wan全quan限xian製zhi毛mao坯pi。

　　由you於yu鍛duan坯pi在zai冷leng鍛duan過guo程cheng中zhong會hui產chan生sheng變bian形xing和he硬ying化hua
，使shi鍛duan模mo承cheng受shou較jiao大da的de負fu荷he

，因yin此ci需xu要yao采cai用yong高gao強qiang度du的de鍛duan模mo和he硬ying質zhi潤run滑hua膜mo來lai防fang止zhi磨mo損sun和he附fu著zhe。另ling外wai，為wei了le防fang止zhi坯pi料liao開kai裂lie

，必bi要yao時shi進jin行xing中zhong間jian退tui火huo
，以yi保bao證zheng所suo需xu的de變bian形xing能neng力li。為wei了le保bao持chi良liang好hao的de潤run滑hua狀zhuang態tai，坯pi料liao可ke以yi磷lin化hua。目mu前qian，棒bang線xian材cai連lian續xu加jia工gong
，型xing材cai無wu法fa潤run滑hua。研yan究jiu了le磷lin化hua潤run滑hua的de可ke能neng性xing。根gen據ju坯pi料liao的de運yun動dong方fang式shi，鍛duan造zao可ke分fen為wei自zi由you鍛duan造zao、鐓粗、擠壓、模鍛
、bishimoduanhebishiduicu。bishimoduanhebishiduicuyouyuwufeibian，cailiaoliyonglvjiaogao。yongyizhonghuoduozhonggongyiwanchengfuzaduanzaoshikenengde。youyumeiyoufeibian，duanjiandeshoulimianjijianxiao，suoxufuhejianxiao。danyingzhuyideshi，yangekongzhimaopitiji，kongzhiduanmodexiangduiweizhiheceliangduanjianyijianshaomojumosun，bunengwanquanxianzhimaopi。