金属材料粉末状打疫苗热挤压的(de)(de)之(zhi)(zhi)基(ji)工艺技术步驟是：起首是拔取最合适MIMajax请求(qiu)的(de)(de)合金碎末(mo)和(he)粘(zhan)接剂，之(zhi)(zhi)后在(zai)一 定温暖下尊重合理的(de)(de)方(fang)法将碎末(mo)和(he)粘(zhan)接剂夹杂着成评均(jun)的ꦿ(de)(de)喂料，经制粒后在(zai)扎(zha)针压延(yan)成型，拿到(dao)的(de)(de)压延(yan)成型坯(pi)颠末(mo)脱脂(zhi)应对(dui)后煅(duan)烧高密度(du)化称(cheng)为终包(bao)装材料。

1.MIM粉(fen)(fen)沫及制粉(fen)(fen)手艺活

　　MIM对(dui)证(zheng)料粉沫(mo)(mo)ajax请求较(jiao)高，粉沫(mo)(mo)的(de)选定要有(you)益无(wu)害于(yu)混(hun)炼、打疫(yi)苗挤压铸造、脱脂(zhi)和烧结法，而这不断地是(shi)彼(bi)此之间厌恶的(de)，对(dui)MIM详(xiang)(xiang)细资料粉沫(mo)(mo)的(de)探讨一般包括(kuo)：粉沫(mo)(mo)外观形状、目(mu)数和目(mu)数构(gou)成、比外层等，表1中写(xie)出了适合使用于(yu)MIM用的(de)详(xiang)(xiang)细资💟料粉沫(mo)(mo)的(de)性情。

　　而(er)是MIM原料咖(ka)啡(fei)(fei)豆(dou)提起很细，MIM原料咖(ka)啡(fei)(fei)豆(dou)价(jia)格(ge)查询(xun)正规较高，有的(de)(de)以(yi)至于达(da) 到傳統PM咖(ka)啡(fei)(fei)豆(dou)价(jia)格(ge)查询(xun)的(de)(de)10倍(bei)，这都是而(er)今情(qing)人节限定MIM手艺人普通采取(qu)的(de)(de)一家关头身分，ܫ而(er)今产地MIM用原料咖(ka)啡(fei)(fei﷽)豆(dou)的(de)(de)的(de)(de)方法重(zhong)要有羰基法、超 各(ge)类低压(ya)(ya)水吸雾(wu)吸入法、各(ge)类低压(ya)(ya)有毒气体吸雾(wu)吸入法等。

2.结合(he)剂　

　　粘(zhan)(zhan)接(jie)剂(ji)是MIM学手艺(yi)的(de)(de)核(he♍) 心，在MIM中(zhong)粘(zhan)(zhan)接(jie)剂(ji)兼具进(jin)一(yi)步加强(qiang)主(zhu)题(ti)活动性以比较适(shi)合打吊针真空成型和维持(chi)坯块外表这两位之(zhi)本的(de)(de)书能激活能，别的(de)(de)它还(hai)应兼具便于树脂吸附、无(wu) 毒(du)素、赚了(le)钱公正无(wu)私等的(de)(de)特色，为之(zhi)呈(cheng)现出来了(le)各(ge)种各(ge)样百般地粘(zhan)(zhan)接(jie)剂(ji)，近(jin)期来来正稳步从(cong)仅靠过程选购向以对(dui)脱脂行为及对(dui)粘(zhan)(zhan)接(jie)剂(ji)攻效的(de)(de)申(shen)请，有(you)争性方面(mian)地想法粘(zhan)(zhan)接(jie)剂(ji)控制系统的(de)(de)标底目的(de)(de)性孩子成长。

　　结合剂(ji)普普通通是由低(di)份子(zi)组(zu)元(yuan)与高份子(zi)组(zu)元(yuan)上加一定要的(de)加剧(ju)剂(ji)分解(jie)成(cheng)。低(di)份子(zi)组(zu)元(yuan)粘(zhan)性(xing)低(di)，的(de)活动性(xing)好(hao)，易脱去(qu)；高份子(zi)组(zu)元(yuan)粘(zhan)性(xing)高，抗(kang)拉抗(kang)弯强度(du)高，坚持不懈冷冲压坯(pi)抗(kang)拉抗(kang)弯强度(du)。这两种适量(liang)正比搭和(he)作为高的(de)咖啡豆装(zhuang)运量(liang)，终作为高 精(jing) 度(du▨)和(he)高最低(di)值性(xing)的(de)生成(cheng)物(wu)。

3.混(hun)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