公开(公告)号：US20110254243A1

公开(公告)日：2011-10-20

申请号：US13130446

申请日：2009-11-19

Applicant: Derk Geert Aalderink ,  Martinus Jozef Maria Verhoofstad

Inventor： Derk Geert Aalderink ,  Martinus Jozef Maria Verhoofstad

IPC: B60G3/12 ,  C21D8/00

CPC classification number: C21D1/20 ,  B60G7/001 ,  B60G2200/31 ,  B60G2202/112 ,  B60G2202/152 ,  B60G2206/81022 ,  B60G2206/8402 ,  C21D1/46 ,  C21D9/0068 ,  C21D2211/002

Abstract: The invention relates to a method for manufacturing of a flexible trailing arm for a wheel axle suspension of a vehicle such as a lorry or a trailer. In the method a steel blank is heated. Next, the blank is formed into the desired shape of the trailing arm by means of a suitable forming process. Following that the trailing arm is austempered by cooling it in a warm fluid medium.

Abstract translation: 本发明涉及一种用于制造诸如卡车或拖车之类的车辆的车轮悬架的柔性拖臂的方法。 在该方法中，钢坯被加热。 接下来，通过合适的成型工艺将坯料形成为所需的后臂形状。 之后，通过在温暖的流体介质中冷却拖尾臂进行奥氏体化。

公开(公告)号：US20100108198A1

公开(公告)日：2010-05-06

申请号：US12262960

申请日：2008-10-31

Applicant: Ulrich Baudis ,  Michael Merz

Inventor： Ulrich Baudis ,  Michael Merz

IPC: C23C22/72 ,  C23C28/00

CPC classification number: C23C8/46 ,  C21D1/46 ,  C21D2211/001 ,  C23C10/24

Abstract: A method for hardening the surfaces of work pieces made from stainless steel includes submerging the work pieces into a molten salt bath having the composition: potassium acetate 60-100 weight %; sodium acetate 0-100 weight %; metal salt 0-2 weight %, and are subjecting the work pieces to the molten salt bath for a period of 24 to 240 hours, during which the temperature of the molten salt bath is maintained less than 400° C.

Abstract translation: 用于硬化由不锈钢制成的工件的表面的方法包括将工件浸入具有以下成分的熔融盐浴中：乙酸钾60-100重量％; 乙酸钠0-100重量％; 0-2重量％的金属盐，并将工件进入熔融盐浴24至240小时，在此期间熔融盐浴的温度保持在400℃以下。

公开(公告)号：US6068568A

公开(公告)日：2000-05-30

申请号：US975152

申请日：1997-11-20

Applicant: Nobuto Kozakura ,  Toyonaga Saito ,  Tsutomu Haginoya ,  Takero Nakagawa

Inventor： Nobuto Kozakura ,  Toyonaga Saito ,  Tsutomu Haginoya ,  Takero Nakagawa

IPC: F16G13/06 ,  B21L9/08 ,  B21L15/00 ,  C22C38/00 ,  C23C8/22 ,  C23C8/32 ,  F16G13/04 ,  B21L3/04

CPC classification number: C21D9/0087 ,  B21L15/00 ,  B21L9/04 ,  B21L9/08 ,  F16G13/04 ,  C21D1/46 ,  C21D2211/004

Abstract: A silent chain is provided which has reduced elongation based on wear and which is capable of maintaining a high accuracy over a long period of time in use. The inner surfaces of pin holes formed in at least joint trains of plates have been subjected to shaving, and a hard layer of at least one hard metal carbide selected from a group including CrC, TiC, VC and NbC, is formed on the surface of each pin. By shaving the inner surface of each pin hole, the surface pressure applied between the pin hole inner surface and the pin inserted therein becomes lower, whereby the wear of the pin and the pin hole is diminished. Further, since the hard layer on the pin surface is very hard and is chemically stable, the affinity of each plate for the inner surface of each pin hole formed therein is small. Thus, even under the condition of boundary lubrication, it is difficult for adhesion to occur between the pin hole inner surface and the pin inserted therein. Consequently, the amount of pin wear is lessened so that it becomes possible to minimize the elongation of the chain based on wear.

Abstract translation: 提供了一种基于磨损降低伸长率并且能够在长时间内保持高精度的无声链条。 形成在板的至少接合列中的销孔的内表面经受刮削，并且在表面上形成选自包括CrC，TiC，VC和NbC的组中的至少一种硬质合金碳化物的硬质层 每个针。 通过剃刮每个销孔的内表面，施加在销孔内表面和插入其中的销之间的表面压力变低，由此销和销孔的磨损减小。 此外，由于销表面上的硬层非常硬并且化学稳定，因此每个板对于其中形成的每个销孔的内表面的亲合力小。 因此，即使在边界润滑的条件下，也难以在销孔内表面和插入其中的销之间发生粘合。 因此，销磨损量减少，从而可以使链条的基于磨损的伸长率最小化。

公开(公告)号：US4992309A

公开(公告)日：1991-02-12

申请号：US405289

申请日：1989-09-11

Applicant: Takesi Omori ,  Osamu Matsumoto ,  Tatsuo Horimoto

Inventor： Takesi Omori ,  Osamu Matsumoto ,  Tatsuo Horimoto

IPC: C21D1/46 ,  C23C8/48

CPC classification number: C23C8/48 ,  C21D1/46

Abstract: A method for salt bath-nitriding a metal member having a blind hole, which comprises supporting the metal member so that the open side of the blind hole is directed upward, filling a salt bath-nitriding agent into the blind hole and immersing the resultant metal member in a salt bath melt.

Abstract translation: 一种用于对具有盲孔的金属构件进行盐浴氮化的方法，其包括将所述金属构件支撑以使所述盲孔的开口侧向上引导，将盐浴渗氮剂填充到所述盲孔中并将所得金属 会员在盐浴融化。

公开(公告)号：US4583720A

公开(公告)日：1986-04-22

申请号：US664389

申请日：1984-10-24

Applicant: Roland Kunzli ,  Gunther Schroder ,  Robert Singer

Inventor： Roland Kunzli ,  Gunther Schroder ,  Robert Singer

IPC: C21D9/28 ,  C21D1/26 ,  C21D1/44 ,  C21D1/46 ,  C22F1/00 ,  C22F1/10 ,  C21D9/00

CPC classification number: C21D1/46 ,  C21D1/26

Abstract: An apparatus and a process for the zone-annealing of a workpiece (1) consisting of a high-temperature material, in which the workpiece (1) is hung on a suspension device (2) actuated via a roller (3) driven by a drive motor (4) and is provided with a plate-shaped covering screen (10) having an orifice. For the dipping of the workpiece (1), there is underneath the latter a salt bath (5) which is enclosed in an insulating vessel (6) and is provided with a heating system (7) with centrally symmetrical guide plates (8) and which is closed off at the top by means of a floating insulating cover (9). The cooling of the part of the workpiece (1) which is not immersed is guaranteed by a cooling body (11) through which cooling air (14) flows and which has a central passage (12) and, at the lower end of the passage (12), a projecting edge (13) serving as a stop for the covering screen (10). The intended grain structure can be adjusted when the feed speed of the workpiece (1) is varied in portions by means of a drive motor (4) and the amount of cooling air (14). The lateral heat flux is reduced by means of jacket-like heat-insulating cladding of the workpiece (1).

Abstract translation: 一种用于由高温材料组成的工件（1）的区域退火的装置和方法，其中工件（1）悬挂在经由由（3）驱动的辊（3）致动的悬挂装置（2）上， 驱动马达（4），并且设置有具有孔口的板状覆盖屏（10）。 对于工件（1）的浸渍，在其下方具有封闭在绝缘容器（6）中的盐浴（5），并且设置有具有中心对称导向板（8）的加热系统（7）和 其通过浮动绝缘盖（9）在顶部封闭。 通过冷却空气（14）流过冷却空气（14）并具有中心通道（12）的冷却体（11）和通道的下端来保证工件（1）未被浸没的部分的冷却 （12），用作覆盖屏（10）的止挡件的突出边缘（13）。 当通过驱动马达（4）和冷却空气（14）的量部分地改变工件（1）的进给速度时，可以调整预期的晶粒结构。 通过工件（1）的护套状绝热包层来减小横向热通量。

公开(公告)号：US4222554A

公开(公告)日：1980-09-16

申请号：US966926

申请日：1978-12-06

Applicant: Leslie Bassett

Inventor： Leslie Bassett

IPC: C21D1/46

CPC classification number: C21D1/46

Abstract: In the art electric heat treat furnaces have a frame and an open top housing of refractory brick therein including a plurality of inner walls defining a chamber throughout its height adapted to receive a molten bath such as a salt bath into which metal pieces are suspended for heat treatment. The chamber has a top entrant passage of rectangular shape. Electrodes extend transversely through the housing adjacent the chamber for the passage of current through the bath between the electrodes to maintain the bath at a predetermined heat treat temperature. A transformer having primary and secondary pads includes electric connectors between the pads and the electrodes. The improvement herein comprises a plurality of vertically spaced tiers of vertically spaced electrodes arranged along the height of the chamber. At least one and, in some cases, a pair of spaced inner walls of the housing are laterally displaced outwardly of the entrant passage to provide a heat treat chamber which is laterally enlarged adjacent such displaced inner wall thereby spacing the electrodes laterally outward of the entrant passage and outward of the chamber. Thus, the workpieces to be treated may extend to the bottom of the chamber, the tiers of electrodes maintaining a substantially uniform temperature of the bath throughout the depth of the bath. The entrant passage serves to space the workpieces inwardly of the electrodes so as not to obstruct the current flow between such electrodes. A modification includes additional vertically spaced tiers of vertically spaced electrodes laterally spaced from the corresponding first mentioned tiers of electrodes.

Abstract translation: 电热处理炉在其中具有框架和耐火砖的敞开的顶部壳体，其中包括多个内壁，其在其整个高度上限定一个腔室，该腔体适于容纳诸如盐浴的熔融浴，金属片悬挂在其中以供热 治疗。 该房间具有矩形形状的顶部通道。 电极横向延伸穿过邻近腔室的壳体，以使电流通过电极之间的浴池，以将浴保持在预定的热处理温度。 具有初级和次级焊盘的变压器包括焊盘和电极之间的电连接器。 这里的改进包括沿室的高度布置的多个垂直隔开的垂直隔开的电极层。 至少一个并且在一些情况下，壳体的一对隔开的内壁在入口通道的外侧被横向移位，以提供热处理室，该处理室相邻于这种偏移的内壁而横向扩大，从而将电极横向向外插入入口 通道和室外。 因此，待处理的工件可以延伸到室的底部，电极层在浴的整个深度处保持浴的基本均匀的温度。 入口通道用于将工件在电极的内部空间，以便不阻碍这些电极之间的电流。 修改包括与对应的第一级电极横向间隔开的垂直间隔的垂直间隔的电极的附加层。

公开(公告)号：US4153481A

公开(公告)日：1979-05-08

申请号：US812758

申请日：1977-07-05

Applicant: Robert W. Foreman ,  Gajen P. Dubal ,  Charles R. Fox

Inventor： Robert W. Foreman ,  Gajen P. Dubal ,  Charles R. Fox

IPC: C21D1/46 ,  C23C8/46 ,  C21D1/48

CPC classification number: C23C8/46 ,  C21D1/46

Abstract: A cyanide-free molten salt carburizing process and composition comprising an alkali metal salt bath having a cover of finely divided graphite particles in a size range of about 100 mesh to about 300 mesh. The bath is operated in the temperature range of about 1550.degree. F. to 1900.degree. F. and is provided with mechanical agitation to produce entrainment of air through the surface cover and sufficient mobility of carbon monoxide coated graphite particles to produce carbon diffusion by contact into the surface of the parts immersed in the bath. Total graphite content is between about 11/2% to about 7% of the active portion of the bath. The graphite is preferably of the synthetic type so as to produce an ash content below about 1%.

Abstract translation: 一种无氰化物熔盐渗碳方法和组合物，其包含碱金属盐浴，其具有约100目至约300目尺寸范围内的细碎石墨颗粒的覆盖层。 浴在约1550°F至1900°F的温度范围内运行，并提供机械搅拌，以通过表面覆盖物产生空气的夹带和一氧化碳涂覆的石墨颗粒的充分移动性，以通过接触产生碳扩散 表面的部件浸在浴中。 总石墨含量在浴的活性部分的约11/2％至约7％之间。 石墨优选为合成型，以便产生低于约1％的灰分含量。

公开(公告)号：US4021272A

公开(公告)日：1977-05-03

申请号：US568197

申请日：1975-04-15

Applicant: Yoshiteru Asai ,  Sumio Yoshizoe

Inventor： Yoshiteru Asai ,  Sumio Yoshizoe

IPC: C22C38/00 ,  B26B21/58 ,  C21D1/26 ,  C21D1/46 ,  C21D6/00 ,  C21D9/18 ,  C21D9/46 ,  C21D9/52 ,  C21D1/48

CPC classification number: C21D1/46 ,  C21D9/52

Abstract: A method consisting in converting a coil of hot-rolled band steel for tools and razor blades into an open coil in which its convolutions are spaced apart from one another, and immersing the open coil in a series of salt baths. First of all, the open coil is immersed for 5 to 30 minutes in a salt bath held at a temperature in a range from 550.degree. to 750.degree. C. to preheat the open coil and cause preliminary precipitation of carbides. The preheated open coil is immersed for 5 to 30 minutes in a salt bath held at a temperature in a range from the temperature immediately above Acl point to the temperature of Acl point plus 50.degree. C. to make the band steel austenitic in structure. The open coil is then immersed for over 10 minutes in a salt bath held at a temperature in a range from the temperature immediately below Arl point to the temperature of Arl point minus 80.degree. C. so that the isothermal transformation may be completed. Finally, the open coil is immersed for 3 to 10 minutes in a salt bath held at a temperature in a range from 600.degree. to 650.degree. C. and air cooled thereafter. The method enables to produce band steels for tools and razor blades which contain carbides occurring in a small spheroidal structure of uniform size, have good cold-workability, have freedom from decarburizing and carburizing, and have high amenability to hardening.

Abstract translation: 一种将用于工具和剃刀刀片的热轧带钢线圈转换成卷绕彼此间隔开的开放线圈，并将开放线圈浸入一系列盐浴中的方法。 首先，将开放的线圈浸入保持在550℃至750℃的温度的盐浴中浸泡5至30分钟，以预热开放的线圈并引起碳化物的初步沉淀。 将预热的开放线圈在保持在Acl点附近的温度到Acl点加上50℃的温度范围内的盐浴中浸渍5至30分钟，以使结构中的奥氏体钢带形成。 然后将开放的线圈浸入保持在Arl点以下的温度至Ar1点的温度为零下80℃的温度范围内的盐浴中浸渍10分钟以上，从而可以完成等温转变。 最后，在保持在600〜650℃的温度的盐浴中浸泡3〜10分钟，然后空气冷却。 该方法能够生产用于具有均匀尺寸的小球形结构中存在的碳化物的工具和剃刀刀片的带钢，具有良好的冷加工性，不会脱碳和渗碳，并且具有高的硬化适应性。

公开(公告)号：US3426837A

公开(公告)日：1969-02-11

申请号：US3426837D

申请日：1966-12-27

Applicant: SUN STEEL TREATING INC

Inventor： MOORE GEORGE E ,  RICHARDSON AL E

IPC: C21D1/46 ,  F27D11/00 ,  F28F27/00 ,  F28C3/04 ,  F28D7/00

CPC classification number: F27D11/00 ,  C21D1/46

公开(公告)号：US3239391A

公开(公告)日：1966-03-08

申请号：US3239391D

CPC classification number: C21D1/46