黑色金属粉未打吊针挤压成型的(de)之本的(de)工艺关键步骤是：起首是拔(ba)取适当MIM請求(qiu)的(de)不锈钢金属粉和黏接(jie)剂，而(er)为在(zai)(zai)一 定温度因素下去接(jie)纳妥(tuo)当的(de)的(de)方法将金属粉和黏接(jie)剂夹杂着(zhe)成人均的(de)喂料，经制粒后(hou)在(zai)(zai)打疫(yi)苗塑压(ya)，作为的(de)塑压(ya)坯颠末脱脂(zhi)妥(tuo)善(shan)处理后(hou)煅烧(shao🎀)非均质(zhi)化(hua)成了终(zhong)食品。

1.MIM粉末状及制(zhi)粉匠(jiang)人(ren)

　　MIM质问料金(jin)(jin)属(shu)粉(fen)(fen)ajax请求(qiu)较高，金(jin)(jin)属(shu)粉(fen)(fen)的做好(hao)(hao)(ha♕o)要好(hao)(hao)(hao)处于混炼、打点(dian)滴成型法、脱(tuo)脂和(he)烧结法，而这不(bu)时是两个人抵触情(qing)绪的，对MIM详细资料金(jin)(jin)属(shu)粉(fen)(fen)的讨论(lun)会含有：金(jin)(jin)属(shu)粉(fen)(fen)样貌、磨料颗(ke🐼)粒和(he)磨料颗(ke)粒分(fen)解成、比外(wai)表(biao)通常看上去等，表(biao)1中列举出了比较好(hao)(hao)(hao)于MIM用的详细资料金(jin)(jin)属(shu)粉(fen)(fen)的性格。

　　因(yin)MIM资料粉丝(si)重定向很细(xi)，MIM资料粉丝(si)标(biao)价(jia)硬性(xing)较高(gao)，有的(de)(de)甚至达 到中国传统PM粉丝(si)标(biao)价(jia)的(de)(de)10倍，这便是今时(shi)限量MIM厨艺普遍性(xing)通过(guo)的(de)(de)一(yi)家(jia)关头(tou)身分，今时(shi)生厂MIM用资料粉丝(si)的(de)(de)具(ju)体方(fang)法首选(xuan)有羰基法、超(chao) 超(ch🌠ao)高(gao)电压水做(zuo)做(zuo)雾🌼化(hua)法、超(chao)高(gao)电压气物(wu)做(zuo)做(zuo)雾化(hua)法等(deng)。

2.黏(nian)接剂(ji)　

　　粘(zhan)合(he)剂(ji)是MIM技(ji)艺(yi)的(de)核 心(xin)，在(zai)MIM中(zhong)粘(zhan)合(he)剂(ji)兼(jian)具继(ji)续加强游(you)戏(xi)活动性以(yi)适宜(yi)挂水(shui)做成型和堅持坯块外观(guan)这(zhei)(zhei)好几(ji)个根(gen)本(ben)的(de)本(ben)能地包能，最后它(ta)还(hai)应兼(jian)具更易去除、无(wu) 渗透性、挣到公正无(wu)私等一大特色(se)，因为这(zhei)(zhei)显现(xian)出(chu)了以(yi)及百(bai)似的(de)粘(zhan)合(he)剂(ji)，比较近近几(ji)年来正越来越大从光(guang)靠通过选(xuan)择向根(gen)据(ju)对脱脂方(fang)式(shi)方(fang)法及对粘(zhan)合(he)剂(ji)的(de)功效(xiao)的(de)post请求(qiu)，有而(er)ꦦ男人(ren)性地总体目标粘(zhan)合(he)剂(ji)机系统的(de)标签的(de)目的(de)孩子成长。

　　结合(he)剂(ji)(ji)普(pu)通型(xing)是由低份(fen)(fen)子组(zu)元(yuan)与高(gao)份(fen)(fen)子组(zu)元(yuan)加带有些要的(de)(de)提高(gao)剂(ji)(ji)分为(we🌳i)。低份(fen)(fen)子组(zu)元(yuan)107硅(gui)橡(xiang)胶(jiao)粘稠度(du)(du)低，工作性好(hao)，易脱去；高(gao)份(🐷fen)(fen)子组(zu)元(yuan)107硅(gui)橡(xiang)胶(jiao)粘稠度(du)(du)高(gao)，密度(du)(du)高(gao)，始终坚持冷(leng)冲压坯密度(du)(du)。这(zhei)两者(zhe)良好(hao)比例表搭搭配(pei)作为(wei)高(gao)的(de)(de)粉末状(zhuang)原(yuan)材(cai)料装载的(de)(de)容量量，终作为(wei)高(gao) 精 度(du)(du)和(he)高(gao)平均的(de)(de)性的(de)(de)化合(he)物。

3.混炼　

　　混炼是将金属粉末与粘结剂夹杂取得平均喂料的进程。因为喂料的性子决议了终打针成形产物的机能，以是混炼这一工艺步骤非 常主要。这牵扯到粘结剂和粉末插手的nents to make them melt, then cool, add low melting point components, and then add metal powder in batches. This prevents the low melting point components from vaporizing or decomposing, and adding metal powder in batches can prevent excessive torque increase and equipment loss. For the feeding method of powders of different sizes, the Japanese patent introduces: first add the coarser 15-40um water atomized powder to the binder, then add 5-15um powder, and then add the powder with degree ≤5um. The shrinkage of the final product changes little. In order to evenly coat a layer of binder around the powder, it is also possible to directly add the metal powder to the high melting point componenadictory. Research on MIM raw material powders includes: powder shape , Particle size and particle size composition, specific surface, etc., Table 1 lists the properties of the raw material powder suitable for MIM. Due to the very fine requirements of MIM raw material powders, the prices of MIM raw material powders are generally higher, and some even reach 10 times the price of traditional PM powders. This is currently a key factor restricting the widespread application of MIM technology. The current methods for producing MIM raw material powders are mainly There are carbonyl method, ultra high pressure water atomization method, high pressure gas atomization method, etc. 2. Binder Binder is the core of MIM technology. In MIM, the binder has two basic functions of enhancing fluidity to be suitable for injection molding and maintaining the shape of the billet. In addition, it should have easy removal and no Due to its toxicity and reasonable cost, a variety of adhesives have appeared for this purpose. In recent years, it has gradually moved from the selection of experience alone to the design of adhesives in accordance with the requirements of degreasing methods and the function of adhesives. The development of the agent system.　　 The binder is generally composed of low molecular components and high molecular components plus some essential additives. Low-molecular components have low viscosity, good fluidity and easy to take off; high-molecular components have high viscosity and high strength to maintain the strength of the formed blank. The two are matched in an appropriate ratio to obtain a high powder loading, and finally a product with high accuracy and uniformity is obtained. 3. Kneading 　　　 Kneading is the process of mixing metal powder and binder to obtain a uniform feed. Because the nature of the feed determines the performance of the final injection molded product, this process step of mixing is very important. This involves the addition of binders and powders