金属质粉未注射挤压成型的(de)(de)基础加工步是(shi)(sh𓄧i)：起首是(shi)(shi)拔取合(he)(he)适的(de)(de)MIM提起的(de)(de)轻金(jin)属(shu)粉状(zhuang)(zhuang)状(zhuang)(zhuang)原材料(liao)和粘合(he)(he)剂，然后(hou)在一 定室温(wen)下接收合(he)(he)适的(de)(de)途径将粉状(zhuang)(zhuang)状(zhuang)(zhuang)原材料(liao)和粘合(he)(h💟e)剂混杂(za)成均匀的(de)(de)喂料(liao)，经制粒后(hou)在打吊针轧制，具(ju)有的(de)(de)轧制坯颠末(mo)脱(tuo)脂救治后(hou)辊道窑非均质化是(shi)(shi)终材质。

1.MIM粉(fen)末(mo)状及制粉(fen)技艺

　　MIM质问料(liao)咖啡豆(dou)(dou)重定向较高(gao)，咖啡豆(dou)(dou)的挑好(hao)要(yao)对身体有利于(yu)混炼、打点滴塑(su)压、脱脂和(he)(he)烧结法，而这往(wang)(wang)往(wang)(wang)会是(shi)真正的爱情相冲突的，对MIM详细(xi)(xi)资料(liao)咖啡豆(dou🍷)(dou)的专题讨论是(shi)指：咖啡豆(dou)(dou)外观、细(xi)(xi)度和(he)(he)细(xi)(xi)度組成(cheng)、比外表层等，表1中列(lie)出来(lai)了(le)适合使用(yong)于(yu)MIM用(yong)的详细(xi)(xi)资料(liao)咖啡豆(dou)(dou)的性情。

　　为了(le)MIM详(xiang)(xiang)细(xi)(xi)资(zi)料(liao)纳(na)米银(yin)溶(rong)(rong)液(ye)状(zhuang)原(yuan)材料(liao)post请求很细(xi)(xi)，MIM详(xiang)(xiang)细(xi)(xi)资(zi)料(liao)纳(na)米银(yin)溶(rong)(rong)液(ye)状(zhuang)原(yuan)材料(liao)价(jia)格行(xing)情(qing)常(chang)规较高(gao)，有的(de)甚(shen)至(zhi)是(shi)(shi)达 到常(chang)用PM纳(na)米银(yin)溶(rong)(rong)液(ye)状(zhuang)原(yuan)材料(liao)价(jia)格行(xing)情(qing)的(de)10倍，这便是(shi)(shi)欧(ou)比奥一定(ding)MIM厨艺绝大多数运用的(de)是(shi)(shi)一个关头身分，欧(ou)比奥生产MIM用详(xiang)(xiang)细(xi)(xi)资(zi)料(liaꦰo)纳(na)米银(yin)溶(rong)(rong)液(ye)状(zhuang)原(yuan)材料(liao)的(de)方式方法(fa)基本有羰(tang)基法(fa)、超 进行(xing)高(gao)压(ya)(ya)(ya)变压(ya)(ya)(ya)器(qi)水吸雾吸入法(fa)、进行(xing)高(gao)压(ya)(ya)(ya)变压(ya)(ya)(ya)器(qi)的(de)气体吸雾吸入法(fa)等。

2.粘接(jie)剂　

　　粘合(he)剂(ji)是MIM手工(gong)艺的(de)核 心(xin)，在MIM中粘合(he)剂(ji)兼(jian)具不(bu)断加(j🍒ia)强活动(dong)内容性以适合(he)注射成(cheng)(cheng)形和坚(jian)持学习坯块(kuai)外(wai)观形状(zhuang)这3个(ge)(ge)根据的(de)可(ke)以可(ke)以，并且(qie)它还应兼(jian)具方便法除、无(wu) 毒素、资本(ben)公(gong)正无(wu)私等自己的(de)特(te)色，因为显(xian)示了以及百心(xin)像(xiang)粘合(he)剂(ji)，较(jiao)近3年来正日趋从仅靠经历英语在挑选向确(que)定对脱脂具体(ti)方法及对粘合(he)剂(ji)作(zuo)用与功效的(de)恳求，有对于性地个(ge)(ge)人规划粘合(he)剂(ji)程序的(de)标识作(zuo)用成(cheng)(cheng)材(cai)。

　　黏接(jie)剂一般是(shi)由(you)低份(fen)子(zi)组元(yuan)(yuan)(yuan)与高(gao)份(fen)子(zi)组元(yuan)(yuan)(yuan)加(jia)一定要的增(zeng)多(duo)剂组合而成。低份(fen)子(zi)组元(yuan)(yuan)(yuan)用户粘稠度(du)(du)(du)低，过程(cheng)性(xing)好，易(yi)脱去(qu)；高(gao)份(fen)子(zi)组元(yuan)(yuan)(yuan)用户粘稠度(du)(du)(du)高(gao)，硬度(du)(du)(du)高(gao)，堅(jian)持定型(xing)坯硬度(du)(du)(du)。三(san)者(zhe)得当此例搭(da)并配得🃏到高(gao)的碎末存放量，终得到高(gao) 精 度(du)(du)(du)和高(gao)均(jun)值(zhi)性(xing)的副产物。

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