簡單五(wu)金加工企業現(xian)狀
前(qian)幾(ji)年,我國五(wu)金行業(ye)整體(ti)檔次不太高(gao),中小企業(ye)比(bi)較多,起步(bu)較低,多為(wei)一些小作(zuo)坊;近幾(ji)年變化比(bi)較大,一是(shi)人(ren)員(yuan)素(su)質的提(ti)高(gao),比(bi)如目(mu)前(qian)北京將建的全國最大五(wu)金市場“中華五(wu)金城”的負(fu)責人(ren),都是(shi)博(bo)士,博(bo)士后人(ren)士;二是(shi)工藝及管理(li)水平的提(ti)高(gao)。...更(geng)多
2019-01-18
沖壓(ya)基本(ben)工藝沖壓(ya)的主要(yao)基本(ben)工序有落料(liao)、沖孔、彎曲(qu)和(he)拉深(shen)
落料和(he)沖(chong)(chong)(chong)孔(kong)(kong)(kong)(kong)的(de)過(guo)程完全(quan)一(yi)樣,只是(shi)用途(tu)不同(tong)。落料時,被分(fen)離的(de)部分(fen)是(shi)成(cheng)品(pin),剩下的(de)周邊是(shi)廢(fei)料;沖(chong)(chong)(chong)孔(kong)(kong)(kong)(kong)則是(shi)為(wei)了獲得(de)孔(kong)(kong)(kong)(kong),被沖(chong)(chong)(chong)孔(kong)(kong)(kong)(kong)的(de)板(ban)料是(shi)成(cheng)品(pin),而(er)被分(fen)離部分(fen)是(shi)廢(fei)料。落料和(he)沖(chong)(chong)(chong)孔(kong)(kong)(kong)(kong)統稱為(wei)沖(chong)(chong)(chong)裁。...更(geng)多(duo)
2019-01-18
聯系電話
電話熱線
咨詢QQ
微信二維碼
查看APP