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1. 发明专利

JPH0910600A VACUUM-HEATING TYPE JOINING APPARATUS USED IN MANUFACTURING METHOD OF METALLIC CARRIER FOR AUTOMOBILE EXHAUST GAS CATALYST PURIFICATION DEVICE 失效
公开(公告)号：JPH0910600A
公开(公告)日：1997-01-14
申请号：JP18055995
申请日：1995-06-26
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： TANO KAZUHIRO , SASAKI TOSHIMI , SATOMI AKIHIKO
IPC分类号： B01D53/86 , B01J35/04 , B23K101/02 , B23K103/02
摘要： PURPOSE: To curtail production costs remarkably as a production system suitable for the shape, quantity, etc., of a metallic carrier to be produced by conducting the total process comprising a degasification process in which a solution to be applied on steel foil in advance to improve a joining property, a joining process, and a cooling process in the same system or in individual systems. CONSTITUTION: A joining apparatus used in the manufacturing method of a metallic carrier having honeycomb structure formed by joining a plane plate and a corrugated plate of ferrite type stainless steel foil together or the corrugated plates to each other. The total process comprising a degasification process in which a solution to be applied on the steel foil in advance to improve a joining property, a joining process, and a cooling process is conducted in the same system or in individual systems. For example, when the degasification of the applied solution is easy, a degasification belt A, a joining belt B, and a cooling belt C are placed in the same system. When the degasification is difficult due to the drying property of the solution itself or the quantity of the solution, the degasification belt A is placed in a system separately from the joining belt B and the cooling belt C. That is, whether the degasification belt A is installed in the same system or in a separated system is determined by the characteristics of a material to be joined.

2. 发明专利

JPH06184727A METHOD FOR HARDENING SURFACE OF PART MADE OF STEEL 失效
公开(公告)号：JPH06184727A
公开(公告)日：1994-07-05
申请号：JP35690492
申请日：1992-12-22
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SUZUKI SHINICHI , HOSHINO KAORU , YOKOMIZO MANABU
IPC分类号： C21D1/06 , C23C8/26
摘要： PURPOSE:To obtain a surface treating method capable of obtaining excellent wear resistance and fatigue resistance in which defects of small hardening depth and long treating time in the conventional method are solved while good characteristics of the conventional nitrided parts are maintained. CONSTITUTION:Pares using steel contg. elements having high chemical affinity with N as stock are heated to 600 to 900 deg. C in an atmosphere obtd. by mixing the balance nonoxidizing gas with 1 to 30vol.% NH3, are nitrified, are rapidly cooled to a room temp. and are thereafter subjected to precipitation hardening treatment, or they are heated to 600 to 900 deg.C, are nitrified and are thereafter immediately subjected to rapid cooling to 400 to 600 deg.C and are then subjected to precipitation hardening.

3. 发明专利

JPH05302113A 失效
公开(公告)号：JPH05302113A
公开(公告)日：1993-11-16
申请号：JP13419692
申请日：1992-04-27
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SATO TOKUO , ABE HISASHI
IPC分类号： C21D1/18 , C21D1/62 , C21D1/767
摘要： PURPOSE:To reduce quenched strain at the time of gas-quenching a metallic working member and to improve the accuracy of a parts. CONSTITUTION:In a quenching gas circulating device system constituted of a quenching cylinder 1 provided with a supplying part and an exhausting part 3, 4 for quenching gas having suitable shape to the shape of the working member group 2 arranged in line, a blower 6 and two heat exchangers 7, 8 arranged at the inlet side and the outlet side of the blower, valves 12, 13 are arranged in the vicinity of both end parts of the quenching cylinder, respectively. At the behind parts of the valves, a four-directional switching valve 5 is arranged and a circuit for shortening the quenching gas circulating circuit is arranged between the four-directional switching valve 5 and two sets of the heat exchangers 7, 8, and in the shortening circuit, a valve 9 with actuator is arranged. By using the device, the opening degree of the valve 9 with actuator is controlled to optionally adjust the quenching gas flow rate in the quenching cylinder 1 during quenching process, and cooling speed to the quenching metallic working member 15 is controlled to the suitable cooling speed matched with the material characteristic and the shape to execute the gas quenching.

4. 发明专利

JPH04371565A METHOD FOR GAS-NITRIDING SMALL ARTICLE 失效
公开(公告)号：JPH04371565A
公开(公告)日：1992-12-24
申请号：JP17575191
申请日：1991-06-21
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SUZUKI SHINICHI , YAMAZAKI MITSUAKI
IPC分类号： C21D9/00 , C21D9/02 , C23C8/26 , F27D5/00
摘要： PURPOSE:To gas-nitride a small article such as a shot for peening. CONSTITUTION:A circular dish 12 for inserting a material to be treated is arranged at an angle of 60-85 deg. to a vertical rotating shaft 4 provided at the center of a cylindrical retort 3 in a vertical gas-nitriding furnace, and a small article is placed on the dish, vertically fluttered and shaken with the dish 12 being rotated or not by the rotating shaft 4 and gas-nitrided.

5. 发明专利

JPH04340439A CONTINUOUS MEASUREMENT METHOD OF PENETRATION ELEMENT AMOUNT IN SURFACE MODIFICATION TREATMENT OF METAL 失效
公开(公告)号：JPH04340439A
公开(公告)日：1992-11-26
申请号：JP13951791
申请日：1991-05-16
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SUZUKI SHINICHI
IPC分类号： C23C8/08 , C23C8/24 , G01N13/04
摘要： PURPOSE:To enable quality control accuracy of surface modification to be improved by allowing a specified amount of elements which gradually penetrate into an object to be treated to be measured in read time and the treatment conditions to be identified constantly. CONSTITUTION:A surface of a metal object to be treated is modified by allowing a metal element to be penetrated from the surface within a surface modification treatment atmosphere. A test piece 2 which is of the same material and the same shape as a test piece 1 is cut off from the surface modification treatment atmosphere and is placed within a modification furnace along with the object to be treated. A change in electrical resistance difference between the test piece 1 and the test piece 2 is measured occasionally during the surface modification treatment or a data of electrical resistance difference which is obtained from it is compared with a calibration curve of the electrical resistance difference which is obtained previously and an amount of penetration elements, thus enabling the amount of penetration elements in surface modification treatment of the metal to be measured continuously by making adjustment to a proper surface modification atmosphere.

6. 发明专利

JPH0813122A GAS NITRIDING METHOD FOR PARTS 失效
公开(公告)号：JPH0813122A
公开(公告)日：1996-01-16
申请号：JP34946491
申请日：1991-12-09
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SUZUKI SHINICHI , TANI KENJI
IPC分类号： C23C8/24
摘要： PURPOSE:To enable gas nitriding without deforming strains, at the time of nitriding machine parts essentially having a planar or linear shape, by executing the treatment while the parts to be treated are formed by using jigs made of ceramics. CONSTITUTION:For example, at the time of producing a leaf spring, the parts to be subjected to nitriding are held between jigs made of earthenware shown by the figure in such a manner that they stand in a line by 10 pieces, and gas nitriding is executed. Since ceramis are high in high temp. strength and creep hardly occurs at the treating temp., the parts to be subjected to nitriding can be restrained with high force. Furthermore, ceramics have a thermal expansion coefficient smaller than that of steel, and the control of the shape of the nitriding parts is easily executed. Moreover, since ceramics are not nitrided and are thermally and chemically stable, the secular change thereof is small, and the dissolving capacity for nitriding gas is approximately zero, so that the contact part with the jigs can also be subjected to nitriding free from inferiority to the noncontact part if only there is the feed of nitriding gas to some degree. Thus, by the same method, the stock can be formed into a final shape and can simultaneously be subjected to gas nitriding with high accuracy, and the elaminating effect of the process is high.

7. 发明专利

JPH07188898A SOLID BORONIZING METHOD AND CONTAINER THEREFOR 失效
公开(公告)号：JPH07188898A
公开(公告)日：1995-07-25
申请号：JP34882293
申请日：1993-12-27
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： HONDA TETSUO
IPC分类号： C23C8/68 , C23C8/70
摘要： PURPOSE:To prevent treatment defect in solid boronizing treatment, to improve productivity through reduction of treatment time and to achieve long life of boronizing agent. CONSTITUTION:In the container used when a metal part 5 is solid boronized with using a solid boronizing agent 6, the inner surface and cover 2 at least in contact with a boronizing agent 6 is formed with coppers 3, 4. In this container, the inner surface in contact with boronizing agent can be formed with either a copper layer which is copper-lined copper-plated, copper-thermal-sprayed on the inner surface of iron or iron alloy container or a copper layer. Also, this container can be a double wall structure accommodating the container in a conventional iron or iron alloy container. By using the above described container, the solid boronizing can be conducted in furnace at the prescribed time and temp.

8. 发明专利

JPH02194120A METHOD FOR DIRECTLY AUSTEMPERING CAST ARTICLE 失效
公开(公告)号：JPH02194120A
公开(公告)日：1990-07-31
申请号：JP26722588
申请日：1988-10-25
申请人： MORIKAWA SANGYO , PARKER NETSUSHIYORI KOGYO KK
发明人： KANO KUNIHIKO , MIZUSAWA SHIGERU , YONEMURA TSUGIO , YASUDA KINICHI
IPC分类号： C23C8/22 , C21D5/00 , C23C8/80
摘要： PURPOSE:To save energy in austempering and to reduce the treating time by taking out a cast article from a casting mold when the article is cooled to a specified temp., soaking the article in a prepared austenitizing furnace, then quenching the article in a thermostatic bath, and holding the article at a specified temp. CONSTITUTION:Cast iron is cast, and the cast article is taken out from a casting mold when the article is cooled to 400-900 deg.C in the course of solidification. The article is soaked in the prepared austenitizing furnace, then immediately quenched in the thermostatic bath, and held for a specified time to allow the isothermal transformation to proceed. The cast steel is cast by the lost pattern casting method to form a carburized layer on the surface of the cast article. The carburized layer is hardened by heat treatment. By this method, a cast article having high resistance to fatigue is obtained.

9. 发明专利

JPH02118060A METHOD FOR NITRIDING IRON-BASED STRUCTURAL PARTS IN SALT BATH 失效
公开(公告)号：JPH02118060A
公开(公告)日：1990-05-02
申请号：JP26821488
申请日：1988-10-26
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： SATO TOKUO , HOSHINO KAORU , KUROSAWA TAKUMI
IPC分类号： C23C8/50
摘要： PURPOSE:To shorten heat treatment time and to improve the mechanical properties of iron-based structural parts by nitriding the parts in a molten salt at a specified temp. and immediately holding the nitrided parts under cooling in a molten salt at a specified temp. to decompose a formed austenite phase. CONSTITUTION:Iron-based structural parts are nitrided in a molten salt kept at 590-650 deg.C. The nitrided parts are immediately held under cooling in a molten salt kept at 250-550 deg.C for several to several ten min to decompose a soft austenite phase formed between a compd. layer and a diffusion layer obtd. by the nitriding into alpha-Fe+Fe4N+Fe3C. The nitriding efficiency is increased and the mechanical strength of the parts is improved.

10. 发明专利

JPS63240981A SOLVENT-VAPOR PRESSURE WASHING METHOD 失效
公开(公告)号：JPS63240981A
公开(公告)日：1988-10-06
申请号：JP7026087
申请日：1987-03-26
申请人： PARKER NETSUSHIYORI KOGYO KK
发明人： KOIKE INOKICHI , KUBOSUMI HIROMICHI
IPC分类号： B08B3/08

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