硬質合金刀片主要是采用(yong)整體硬(ying)質合(he)金為基體,經過多道生產工序精加工而(er)成。
硬(ying)質合金(jin)又名(ming)鎢鋼,是采(cai)用優質碳化鎢+鈷(gu)粉(fen)料經配(pei)方配(pei)比(bi)混合后通(tong)過壓制(zhi)燒(shao)結制(zhi)成,具有高(gao)硬(ying)度、高(gao)強度、高(gao)耐磨性和(he)高(gao)彈(dan)性模量,屬于粉(fen)末冶金(jin)工業。硬(ying)質合金(jin)作為現代工業的牙(ya)齒,硬(ying)質合金(jin)刀具對制(zhi)造業的發展起著基礎性的推動作用。
硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)按(an)晶粒(li)大小區分,可分為普通硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)、細(xi)(xi)晶粒(li)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)和(he)(he)亞細(xi)(xi)、超細(xi)(xi)晶粒(li)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin),新推出的雙晶硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)。按(an)主(zhu)要(yao)化(hua)(hua)(hua)(hua)學成分區分,可分為碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鎢(wu)(wu)基(ji)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)和(he)(he)碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鈦(tai)(tai)基(ji)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)。碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鎢(wu)(wu)基(ji)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)包括鎢(wu)(wu)鈷類(lei)(YG)、鎢(wu)(wu)鈷鈦(tai)(tai)類(lei)(YT)和(he)(he)添加(jia)稀有(you)(you)碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)類(lei)(YW)三(san)類(lei),它(ta)們各有(you)(you)優缺點,主(zhu)要(yao)成分為碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鎢(wu)(wu)(WC)、碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鈦(tai)(tai)(Tic)、碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鈮(ni)(NbC)等常用的金(jin)(jin)(jin)(jin)屬(shu)粘接(jie)相(xiang)是Co。碳(tan)(tan)(tan)化(hua)(hua)(hua)(hua)鈦(tai)(tai)基(ji)硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)是以Tic為主(zhu)要(yao)成分的硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin),常用的金(jin)(jin)(jin)(jin)屬(shu)粘接(jie)相(xiang)Mo和(he)(he)Ni。硬(ying)(ying)質(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)合(he)(he)(he)金(jin)(jin)(jin)(jin)具有(you)(you)硬(ying)(ying)度高(86~93HRA,相(xiang)當(dang)于69~81HRC)僅(jin)次于金(jin)(jin)(jin)(jin)剛(gang)石(shi)、熱硬(ying)(ying)性(xing)(xing)好(可達(da)900~1000℃,保(bao)持(chi)60HRC);抗彎強(qiang)度高(MPa5100)、良(liang)好的抗沖擊韌性(xing)(xing)和(he)(he)抗腐蝕(shi)性(xing)(xing)極高的化(hua)(hua)(hua)(hua)學惰性(xing)(xing)等一般(ban)合(he)(he)(he)金(jin)(jin)(jin)(jin)刀片所(suo)沒有(you)(you)的特性(xing)(xing)。
keyword:硬質合金刀片
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