会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Method for rapid solidification processing of multiphase alloys having
large liquidus-solidus temperature intervals
    • 用于液相线 - 固相线温度较高的多相合金的快速凝固加工方法
    • US4540546A
    • 1985-09-10
    • US558612
    • 1983-12-06
    • Bill C. Giessen
    • Bill C. Giessen
    • B22D11/06B22F9/00B22F9/10C22C1/10C22C45/00C22C1/02C21C5/56
    • B22D11/0611B22F9/008B22F9/10C22C1/1042C22C45/00Y10S75/956
    • Rapid solidification processing by liquid quenching is made practical for multiphase alloys having relatively large liquidus-solidus temperature intervals by a new processing technique termed "melt mix reaction" involving chemically reacting two starting alloys in a mixing nozzle in which a melt mix reaction takes place between the chemically reactable components of the starting alloys to form submicron particles of the resultant compound in the final alloy. The mixing and chemical reaction is performed at a temperature which is at or above the highest liquidus temperature of the starting alloys but which is also substantially below the liquidus temperature of the final alloy, and as close to the solidus temperature of the final alloy as possible. Rapid solidification may be accomplished through the utilization of a melt spinning wheel or may be accomplished through the utilization of an atomizing nozzle configuration, with the rapidly solidified alloy containing a matrix with a microdispersion or a precipitate of the resulting compound contained therein. Heat treatment of the rapidly solidified final alloy may be additionally employed to produce precipitate hardening of the final alloy should such microdispersed precipitates not be formed or be formed incompletely during the rapid solidification process.
    • 通过液体淬火的快速凝固处理对于具有相对较大的液相线 - 固相线温度间隔的多相合金是实用的,通过称为“熔融混合反应”的新的加工技术,包括在混合喷嘴中使两种起始合金化学反应,其中发生熔融混合反应 起始合金的化学反应成分,以在最终合金中形成所得化合物的亚微米颗粒。 混合和化学反应在等于或高于原始合金的最高液相线温度的温度下进行,但也大大低于最终合金的液相线温度,并且尽可能接近最终合金的固相线温度 。 可以通过利用熔融纺丝轮来实现快速凝固,或者可以通过利用雾化喷嘴构型来实现快速凝固的合金,其中含有微分散体的基质或其中所含的所得化合物的沉淀物。 如果这种微分散的沉淀物在快速凝固过程中不形成或不完全形成,则可以另外使用快速固化的最终合金的热处理来产生最终合金的沉淀硬化。
    • 18. 发明授权
    • Method of plasma nitriding of metals via nitrogen charging
    • 通过氮气充电等离子体氮化氮化的方法
    • US07556699B2
    • 2009-07-07
    • US10870489
    • 2004-06-17
    • Clark VanTine CooperKrassimir G. MarchevBill C. Giessen
    • Clark VanTine CooperKrassimir G. MarchevBill C. Giessen
    • C23C8/36C23C8/24
    • C23C8/26C23C8/02C23C8/80Y10T428/12Y10T428/12458
    • A method of nitriding a metal includes transforming a surface region of a generally nitrogen-free metal into a nitrogen-containing solid solution surface region. A first heating process heats the surface region at a first temperature in the presence of a nitrogen gas partial pressure to form a nitrogen-charged surface portion on the surface region. A second heating process heats the surface region and nitrogen-charged surface portion at a second temperature for a predetermined time to interstitially diffuse nitrogen from the nitrogen-charged surface portion a depth into the surface region. Coincident with the second heating process, an ionized inert or reducing gas removes the nitrogen-charged surface portion. The resulting nitrogen-containing solid solution surface region has a gradual transition in nitrogen concentration.
    • 金属氮化的方法包括将一般无氮金属的表面区域转化为含氮固溶体表面区域。 在氮气分压的存在下,第一加热工艺在第一温度下加热表面区域,以在表面区域上形成带氮表面部分。 第二加热过程在第二温度下将表面区域和带氮表面部分加热预定时间,从而将含氮表面部分的氮气间隙地扩散到表面区域。 与第二加热方法一致,电离的惰性或还原气体除去带氮的表面部分。 所得到的含氮固溶体表面区域的氮浓度逐渐变化。