供应MIM牙齿矫形托槽

金属射出成形(MIM)--复杂精密零件生产工艺与主要产品
　
 
 
金属射出成形(MIM)--针对复杂精密零件，低成本、**新型加工方式。金属射出成形,是一种将金属粉末与高分子黏结剂混合，使其在加热后具有类似塑料材料的流动性，而可藉由一般射出成形机制造出**尺寸及复杂形状的零件，射出成形后的生胚再经过脱脂过程以去除高分子黏结剂与烧结后可得到高密度且具有优异机械与物理性质的烧结零件。 在过去十余年，在美日等**地区中已成为**发展的制造业。目前已广泛地应用于制造各种复杂形状的零件如计算机用散热片、手工具零件、针车零件、工具机零件、汽机车零件、OA事务机器零件、钟表眼镜用零件、医疗器材零件等。而且材料适用性广，可广泛应用于常用有色金属，不锈钢，钛合金，硬质合金，贵金属等。 
金属射出成形优点： 
降低成本 
广泛的产品外型尺寸及设计 
精密误差(+/- 0.5%) 良好尺寸控制 
各种合金、混合及特性材料的广泛应用 
可适用精密复杂的几何物体 
高材料密度及强度 
弹性化设计 
制造良好表面抛光等。 
金属射出成形适用领域： 

航空工业  飞机机翼绞链、火箭喷嘴、导弹尾翼、陶瓷涡轮叶片芯子  
汽车工业  点火控制锁部件、涡轮增压器转子、阀门导轨部件、汽车刹车装置部件、汽车防晒棚部件 
 
电子工业  磁盘驱动器部件、电缆连接器、电子管壳、计算机打印头、电子封装件、热沉材料 
 
**工业  地雷转子、枪板扳机、穿甲弹弹心、准星座、集束箭弹小箭  
医疗器械  牙齿矫形托槽、体内缝合针、活体组织取样钳、防辐射屏罩  
日用产品  表壳、表带、表扣、高尔夫球头和球座、运动鞋扣、体育枪械零件、文件装订打孔器 
 
机械行业  异形铣刀、切削工具、微型齿轮 
 
常用产品如：

笔记型计算机零件 ( LCD 支撑架及基座) ：材质 : SS316L 及 17- 4PH ， (取代精密 铸造或锻造件) 
锁芯： 材质 : 17-4PH 或 Fe-8% Ni 镀铬 (取代精密铸造) 
手工具零件： 材质 : 高速钢 M2, 低碳合金钢 　(取代粉末冶金及精密铸造) 
气动, 电动工具零件：材质 : 高速钢 M2, 低碳合金钢 
缝纫纺织机零件： 材质 : 高速钢 M2 (取代机械加工制品) 
SMT自动插件机零件：　材质 : 低碳合金钢镀铬 (取代机械加工或精密铸造制 
线性滑轨, 滑块： (自动化及机器手臂零件) 材质 : 高速钢 M2 或工具钢镀铬(取代机械加工制品) 　 
*军火零件类： (取代精密铸造零件) 
铰链(3C类Hinge)等　  



MIM Technology 
  
     Metal Injection Molding (MIM) technology combines the shape making capabilities of plastic injection molding with the material flexibility of powder metallurgy. Taking advantage of unique process capabilities, it allows one complex geometry or co-molding and bonding dissimilar materials. Combining fine metal powders with a “binder” system, components are injection molded, de-bound and sintered, resulting in high-density, complex, precisely-shaped parts exhibiting properties approaching that of wrought material. Alloy and stainless steel, as well as other non-ferous alloys such as titanium, are common materials for MIM.
MIM is used by many industries , such as medical device, telecom, electronics and automotive parts manufacturers, and is a viable and cost effective alternative to other types of metal processes, such as machining and casting. The MIM process is particularly well suited for the high-volume manufacture of relatively small, complex components requiring high strength, high performance and cost efficiency.


   
 MIM Process  
  
  The MIM process mainly consists of 4 steps.
   
1. FEEDSTOCK. The metal powder is mixed with thermoplastic binders to produce 
a homogeneous feedstock; with approximately 60 volume % metal powder and 
40 volume % binders. 
2. INJECTION MOLDING. The feedstock is placed into an injection molder and 
molded to form a net shape green part. Injection molding occurs at relatively low temperatures and pressures inconventional plastic injection molding machines. The molds are similar to those used for plastic injection molding including slides and multi-cavity configurations.

3. DEBINDING. After injection molding , the binder is removed from the green part via an evaporative process called “debinding”.

4. SINTERING. After debinding the part is sintered to form a high-density metal part.Sintering occurs at high temperatures, up to 1260 °C (2300 °F), near the melting point of the metal; under a dry H2 atmosphere or inert gas atmosphere. During sintering, the part will shrink isotropically to form a dense shape. Since, the complex shape of the molded part is retained through the process, close tolerances in the as-sintered part can be achieved. Scrap is eliminated or significantly reduced since machining of the part after sintering is usually not necessary. Certainly, the sintered part can be processed with heat treatment, machining or other means to achieve some special performance.
 
 Advantages of MIM  
  
    Complexity - Geometries comparable to plastic injection molding 
  Density - Typically =95% 
  Surface Finish - As processed 32ms or better 
  Alloy Selection - Many ferrous, nickel-based and copper-based alloys available 
  Stable Quality - Efficient mass production  
  Mechanical Properties Comparable to wrought alloys of similar composition 

 
  Cost Effective - Conserving over 20% typically, also shorter lead time  
   
 Typical Mechanical Properties of MIM Alloys 
  
  Material Designation Code Density Hardness Tensile Strength Elongation 
g/cm3 HR Mpa % 
Low Alloy Stele MIM-2200
(As-sintered Condition) 7.65 45HRB 290 40.0 
MIM-2700
(As-sintered Condition) 7.65 69HRB 440 26.0 
MIM-4605
(As-sintered Condition) 7.62 62HRB 415 15.0 
MIM-4605
(Heat Treated Condition) 7.62 48HRB 1655 2.0 
Stainless 
Steel MIM-316L
(As-sintered Condition) 7.92 67HRB 520 50.0 
MIM-17-4PH
(As-sintered Condition) 7.50 27HRB 900 6.0 
MIM-17-4PH
(Heat Treated Condition) 7.50 40HRB 1185 6.0 
MIM-430L
(As-sintered Condition) 7.50 65HRB 415 25.0 
Tungsten 
Alloy 95%W-Ni-Fe 18.10 25HRB 960 25.0 
97%W-Ni-Fe 18.10 30HRB 940 15.0 
Hard Alloy YG8X 14.90 HRA90 (Transverse 
Rupture 
Strength)2300 / 
Soft Magnetic Alloy MIM-2200 7.60 / 290 40.0 
MIM-Fe-50%Ni 7.70 / 455 30.0 
MIM-Fe-3%Si 7.45 / 530 24.0 
MIM-Fe-50%Co 7.70 / 205 <1.0 
MIM-430L 7.50 / 415 25.0 
   

 Application 
  
  Automotive Industry Electronics and Telecom Medical Devices Firearms Industry Consumer Products Mechanical Industry Tools More Applications 
ignition ontrol module hard disc drive parts orthodontic brackets small arms parts watchcase cutting tool drillstock precision valve 
airbag sensor module electronic packaging radiation protection shield armour-piercing bullet core watch chain micro gear wheel arc tooth pump 
brake component printing head surgical scalpel high energy bullet watch hammer special three-dimensional parts
 blade clamp mold core 
turbo heat sink material implanted devices   golf head cover   coupling device ...... 
magnet sensor seat cable connector     fishing gear parts   multifunctional tool   
pressure control
& flowmeter component of fuel injection system mobile phone hinge     lock parts        
pothook of driving system laptop hinge             
engine rocker mobile phone crust             
oxygen sensor of 
engine management system micro motor parts             
cruise sensor seat               
                
   

公司简介

    嘉兴市瑞德材料科技有限公司**从事金属注射成形（也称为金属射出成形，金属粉末射出成形）技术的研发和应用，大批量生产精密、三维形状复杂以及具有特殊性能要求的金属零部件。
    公司技术**，由多名多年从事金属注射成形行业的国内*组建，构建了集研发设计、制造和服务于一体的*团队。
    公司装备优良，拥有全套金属注射成形生产和检测设备，为客户提供质量优越、交货准时且价格较具竞争优势的服务。
    公司坐落在浙江嘉兴平湖经济开发区，工业环境良好，交通便利，距离上海、杭州、宁波、苏州等周边城市均少于一小时车程。
    瑞德科技致力于成为以市场需求为导向，*响应客户需求的高素质现代制造企业。

 联系方式：
 嘉兴市瑞德材料科技有限公司    
 地址: 浙江省平湖经济开发区*黎公路88号   邮编: 314200
 电话: 0573-8528 1965   0573-8528 1968        传真: 0573-8528 1966 
 电邮:    
 网址：reccotek
 
    Company Profile

    RECCOTEK Metal Injection Molding Co., Ltd is specialized to manufacture Precision Parts to Customer requests with Metal Injection Molding (MIM) technology. We are experts in mass production of small complex and/or special performance metal parts.
    Established by several experts in MIM, RECCOTEK has organized a highly effective team integrated with R&D, manufacturing and service.
    Based on advanced equipments, RECCOTEK has been serving our customers with high quality, shorter lead time and competitive price.
    Located in Zhejiang Pinghu Industrial Zone，our factory can be reached within 1 hour ride from surrounding industrial cities such as Shanghai, Hangzhou, Ningbo, Suzhou.
    RECCOTEK is striving to be a customer-oriented and quickly responding manufacturer.

 ADD:  Duli Rd, Pinghu Economic Development Zone, Zhejiang 314200
 TEL:   86-(0)573-8528 1968    86-(0)573-8528 1965   FAX: 86-(0)573-8528 1966 
 E-MAIL :    
 Website: reccotek