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摘 要 :目前,我國切削(xue)加(jia)(jia)工與(yu)刀(dao)(dao)具技術的(de)水平與(yu)工業發(fa)達 比較落后約20年,縮小這個差距,光(guang)有(you)工具行業的(de)努力是不夠的(de),還必須有(you)用(yong)(yong)(yong)戶行業增(zeng)加(jia)(jia)對刀(dao)(dao)具的(de)投入,充分利用(yong)(yong)(yong)刀(dao)(dao)具在提高效率、降低(di)成(cheng)本、縮短交貨期、加(jia)(jia)快(kuai)新產品(pin)開發(fa)中的(de)作用(yong)(yong)(yong)。國外有(you)數據表明,刀(dao)(dao)具占(zhan)制(zhi)造(zao)成(cheng)本為2.5%~4%,但它卻直接(jie)影響(xiang)占(zhan)制(zhi)造(zao)成(cheng)
2020-12-20 -
摘 要(yao) :刀(dao)(dao)具(ju)(ju)(ju)管理是否適合自己的(de)(de)企(qi)業?要(yao)回答這個問題,首先(xian)要(yao)弄清(qing)楚刀(dao)(dao)具(ju)(ju)(ju)管理的(de)(de)含義。通常認為,把刀(dao)(dao)具(ju)(ju)(ju)的(de)(de)全(quan)部或一部分由另一家(jia)企(qi)業供(gong)應,該企(qi)業只承擔刀(dao)(dao)具(ju)(ju)(ju)供(gong)應的(de)(de)責任。而現(xian)代刀(dao)(dao)具(ju)(ju)(ju)管理的(de)(de)目的(de)(de)則要(yao)廣泛(fan)得(de)多,它(ta)包括(kuo)提(ti)高生產率,減少(shao)刀(dao)(dao)具(ju)(ju)(ju)總費用和(he)所需的(de)(de)資金(jin),減少(shao)刀(dao)(dao)具(ju)(ju)(ju)供(gong)應商的(de)(de)數目,降低加(jia)工成本等諸(zhu)多方(fang)面。
2020-12-20 -
摘 要 :加(jia)工(gong)中(zhong)心(xin)(xin)的(de)結構——加(jia)工(gong)中(zhong)心(xin)(xin)的(de)構成 發布時間:2006-11-30 14:21:23 瀏覽次數:2069 加(jia)工(gong)中(zhong)心(xin)(xin)的(de)構成 加(jia)工(gong)中(zhong)心(xin)(xin)有各(ge)(ge)種類型,雖(sui)然外形(xing)結構各(ge)(ge)異(yi),但總體上是由(you)以下(xia)幾大(da)部分組成。 ⑴ 基礎部件 由(you)床身(shen)、立柱(zhu)和工(gong)作臺等(deng)大(da)件組成,它(ta)們(men)是加(jia)
2020-12-20 -
摘 要(yao) :adjustable spanner||活動扳手 angle cutter||角銑刀 anvil||鐵 arbour||心軸 backing||襯墊 belt sander||帶(dai)式打磨機(ji) buffing||拋(pao)光 chamfering ma
2020-12-20 -
摘 要(yao) :人(ren)(ren)們在(zai)選擇(ze)(ze)紫銅(tong)(tong)盤管的(de)(de)時候需要(yao)一定的(de)(de)經驗,首先人(ren)(ren)們要(yao)對這(zhe)種(zhong)(zhong)銅(tong)(tong)管了解,包括銅(tong)(tong)管的(de)(de)外(wai)部特征,在(zai)了解的(de)(de)基礎上(shang)對這(zhe)種(zhong)(zhong)銅(tong)(tong)管進行選擇(ze)(ze)。在(zai)市(shi)場上(shang)這(zhe)種(zhong)(zhong)銅(tong)(tong)管的(de)(de)種(zhong)(zhong)類比較(jiao)多,人(ren)(ren)們要(yao)學(xue)會(hui)對不同品牌的(de)(de)銅(tong)(tong)管進行選擇(ze)(ze)。一般知名品牌的(de)(de)銅(tong)(tong)管在(zai)質量上(shang)有保障,人(ren)(ren)們在(zai)應用(yong)的(de)(de)時候也(ye)比較(jiao)方便。在(zai)這(zhe)樣的(de)(de)條(tiao)件下(xia),用(yong)戶可以(yi)根據自身
2020-12-20 -
摘 要 :詳細介(jie)紹: 材(cai)質: TP2純(chun)紫銅/C12200 外徑(jing):3.18-305mm 壁厚:0.4-6mm 產(chan)品特點 1)采用先(xian)進(jin)的連(lian)鑄連(lian)軋生(sheng)產(chan)工藝(yi),高純(chun)度,組織(zhi)細密,含氧量低。 2)無(wu)氣(qi)孔(kong)、沙(sha)眼、疏松,具有(you)良好的熱(re)電(dian)導性(xing)、加工性(xing)、延展性(xing)、防蝕性(xing)及耐壓性(xing)等。 3)易于焊(han)接和釬焊(han)
2020-12-20 -
摘 要 :國標T2紫銅(tong)管比純鐵(tie)廣泛得多,每年(nian)有50%的銅(tong)被電(dian)解提純為純銅(tong),用于電(dian)氣工業(ye)(ye)。這里所(suo)說的紫銅(tong),確實(shi)要非常(chang)純,含銅(tong)達99.95%以上才行(xing)。極少(shao)量的雜質,特別(bie)是(shi)磷、砷、鋁等,會大(da)大(da)降低(di)銅(tong)的導電(dian)率。銅(tong)中(zhong)含氧(yang)(煉銅(tong)時容易混入少(shao)量氧(yang))對(dui)導電(dian)率影響很大(da),用于電(dian)氣工業(ye)(ye)的銅(tong)一般都必須是(shi)無氧(yang)銅(tong)。
2020-12-20 -
摘 要(yao) :軟連接一般(ban)都是采(cai)用(yong)(yong)紫銅(tong)(tong)(tong)作為銅(tong)(tong)(tong)材的,紫銅(tong)(tong)(tong)作為銅(tong)(tong)(tong)單質(zhi),導電(dian)性要(yao)高于(yu)黃(huang)銅(tong)(tong)(tong)、青銅(tong)(tong)(tong),一般(ban)廠家(jia)都是用(yong)(yong)T2/T3紫銅(tong)(tong)(tong),對于(yu)導電(dian)率(lv)要(yao)求很高的話選(xuan)擇(ze)T2紫銅(tong)(tong)(tong)。T2紫銅(tong)(tong)(tong)的含銅(tong)(tong)(tong)量99.9%,僅(jin)次(ci)于(yu)銀。 純(chun)銅(tong)(tong)(tong)--T1紫銅(tong)(tong)(tong)管(guan),銅(tong)(tong)(tong)的純(chun)度≥99.95。該牌號的紫銅(tong)(tong)(tong)管(guan)有良好(hao)的導電(dian)、導熱、耐蝕和加工性能,
2020-12-20 -
摘 要 :軸承(cheng)產(chan)品的(de)專(zhuan)業化(hua)生(sheng)(sheng)產(chan)決定了根據(ju)產(chan)品的(de)特點發(fa)展數控專(zhuan)用生(sheng)(sheng)產(chan)短線(xian)(xian)。高精度、低(di)噪聲、大(da)批量、低(di)成本是生(sheng)(sheng)產(chan)電動(dong)機(ji)軸承(cheng)的(de)關鍵。目前國內已有300條左(zuo)右的(de)生(sheng)(sheng)產(chan)深溝球軸承(cheng)的(de)全自(zi)(zi)(zi)動(dong)磨生(sheng)(sheng)產(chan)線(xian)(xian),數控技術大(da)大(da)提高了低(di)噪聲電動(dong)機(ji)的(de)制(zhi)造水平;全自(zi)(zi)(zi)動(dong)磨生(sheng)(sheng)產(chan)線(xian)(xian)目前由微型、小型軸承(cheng)的(de)自(zi)(zi)(zi)動(dong)生(sheng)(sheng)產(chan)線(xian)(xian)向制(zhi)造中(zhong)大(da)型軸承(cheng)的(de)
2020-12-20 -
摘(zhai) 要 :近(jin)年來(lai)國(guo)內軸承行(xing)業(ye)生(sheng)產規模(mo)迅速(su)擴大,躍居全(quan)球(qiu)第四位,軸承企業(ye)近(jin)2000家,其中銷售(shou)收入超過500萬元的企業(ye)在900家以上(shang),數量堪稱全(quan)球(qiu)第一(yi)。但我(wo)(wo)國(guo)軸承行(xing)業(ye)還存在如制(zhi)造(zao)技術(shu)水(shui)平低、行(xing)業(ye)集中度不高等(deng)問題,離(li)軸承強國(guo)的標準還很遠(yuan)。 1、我(wo)(wo)國(guo)軸承行(xing)業(ye)制(zhi)造(zao)技術(shu)水(shui)平低。 我(wo)(wo)國(guo)軸
2020-12-20