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1. 发明专利

JPH0881838A SPINNING RING 失效
公开(公告)号：JPH0881838A
公开(公告)日：1996-03-26
申请号：JP24475394
申请日：1994-09-12
申请人： NIPPON SPINDLE MFG CO LTD
发明人： HAMANA MIKIYO
IPC分类号： D01H7/60
摘要： PURPOSE: To provide a ring for yarn spinning which is formed by subjecting the ring substrate made of a specific alloy steel to the ion nitriding treatment, grinding the surface being in contact with the traveler, thus is suitable for high-speed rotation with the life markedly prolonged because of its reduction in the friction with the traveler and improved initial running-in. CONSTITUTION: The ring substrate is formed with an alloy steel containing 1.3-1.7% chromium, 0.7-1.2% aluminum, 0.15-0.30 molybdenum and 0.4-0.5% carbon. The substrate is subjected to ion nitriding treatment at 570-600 deg.C for a prescribed time to increase the surface hardness of the ring over 1,000 HV, further Fe-N compound layer and the diffusion layer are formed in a thickness of 0.3-0.4mm, then the surface being in contact with the traveler is ground to finish the surface roughness less than 0.3μm.

2. 发明专利

JPS63152416A OPENING CUTTER FOR BALE OPENER 失效
公开(公告)号：JPS63152416A
公开(公告)日：1988-06-24
申请号：JP29566286
申请日：1986-12-10
申请人： NIPPON SPINDLE MFG CO LTD
发明人： NAKAMURA MAKOTO , KINOSHITA HIROBUMI , HAMANA MIKIYO , OCHI TOYOHIKO
IPC分类号： D01G7/04
摘要： PURPOSE:To obtain the titled cutter having durability without sparking in shock with solid foreign materials mixed in opened raw stock, by forming a cutter for a bale opener from a beryllium-copper alloy and subjecting the resultant cutter to solution annealing and hardening treatment. CONSTITUTION:A beryllium-copper alloy, preferably BeA-275C is initially used to form an opening cutter for a bale opener capable of opening a raw stack of an opened bale from the upper part. The resultant cutter is then kept at, e.g. 800-900 deg.C for 1hr, and subjected to solution annealing treatment. The obtained cutter is normally subjected to quenching treatment in water and the solution annealed cutter is subsequently kept at 300-400 deg.C for 2-3hr and then naturally cooled to carry out hardening treatment and impart a required hardness. Thereby the aimed cutter is obtained.

3. 发明专利

JPS63249725A PRODUCTION OF COMPOSITE RING FOR SPINNING 失效
公开(公告)号：JPS63249725A
公开(公告)日：1988-10-17
申请号：JP8427187
申请日：1987-04-06
申请人： NIPPON SPINDLE MFG CO LTD
发明人： KINOSHITA HIROBUMI , NAKAMURA MAKOTO , HAMANA MIKIYO
IPC分类号： D01H7/60
摘要： PURPOSE:To obtain the titled ring of good wear resistance in such processes that a rod-like material is drawn into a drawn member with I-shaped section, which is annularly flexed to join the both ends followed by cutting in round slices to make ring main body with T-shaped section, which is then fitted to the upper part of a holder. CONSTITUTION:A rod-like material is drawn into a continuous drawn member with I-shaped section, which is then cut to a specified dimension followed by annularly flexing to join the both ends followed by welding. After finishing, heat treatment and surface treatment, the resultant member is evenly divided into the upper and lower parts to form a ring main body 6 having flunge 4a and skirt 7. This main body is then fitted to the channel 11 of a holder 10 made of inexpensive material.

4. 发明专利

JPS6328921A RING FOR SPINNING 失效
公开(公告)号：JPS6328921A
公开(公告)日：1988-02-06
申请号：JP17054186
申请日：1986-07-18
申请人： NIPPON SPINDLE MFG CO LTD
发明人： HAMANA MIKIYO , KINOSHITA HIROBUMI
IPC分类号： C22C38/12 , C22C38/18 , C23C8/32 , D01H7/60
摘要： PURPOSE:To obtain the titled ring having little generation of wavy abrasion, etc., and excellent durability owing to fine metal carbide formed in the hardened surface layer, by forming a ring from a low-carbon chromium molybdenum steel and subjecting the ring to gas-carbonitriding and hardening treatments. CONSTITUTION:A ring stock is formed by machining a steel containing 0.1-0.3(wt)% C, 0.8-1.5% Cr and 0.1-0.3% Mo. The ring is subjected to gas- carbonitriding treatment to attain an effective carbonization depth of 0.5-1mm and hardened to form fine metal carbide particles in the hardened surface layer of the ring. Usually, the product is further subjected to a surface-treatment to obtain the objective ring.

5. 发明专利

JPH05302223A 失效
公开(公告)号：JPH05302223A
公开(公告)日：1993-11-16
申请号：JP10668392
申请日：1992-04-24
申请人： NIPPON SPINDLE MFG CO LTD
发明人： HAMANA MIKIYO , NAKAMURA MAKOTO , MINAMI DAISUKE
IPC分类号： D01H7/60
摘要： PURPOSE:To provide the spinning ring adaptable to the high-speed revolution of spindles, capable of significantly extending traveler working life, also of improving drawbacks in the conventional salt bath process. CONSTITUTION:As a ring material, a special steel containing >=0.8wt.% of carbon or a case-hardened steel with the carbon content of its surface brought to >=0.8wt.% through carburizing treatment is used. This material is made to react in a reactor fed with a chloride as reaction promoter where Al2O3 powder and vanadium powder are fluidized with an inert gas, to form a vanadium carbide layer 5-15mum depth with a hardness of >=2500HV on the ring material followed by quenching and annealing to bring the mechanical strength inside the ring to 800-900HV, and the area to be contacted with travelers is put to abrasive finishing, thus bringing the surface coarseness to

6. 发明专利

JPS63249724A PRODUCTION OF COMPOSITE RING FOR SPINNING 失效
公开(公告)号：JPS63249724A
公开(公告)日：1988-10-17
申请号：JP8427087
申请日：1987-04-06
申请人： NIPPON SPINDLE MFG CO LTD
发明人： KINOSHITA HIROBUMI , NAKAMURA MAKOTO , HAMANA MIKIYO
IPC分类号： D01H7/60
摘要： PURPOSE:To obtain the titled ring having excellent abrasion resistance, by drawing a cylindrical material, forming a rough ring section, cutting the resultant material into a specific shape, welding both ends, finish machining the welded material, etc., forming the ring body and mounting the formed ring body on a holder. CONSTITUTION:A cylindrical material 1, such as steel bar or bar steel, is subjected to drawing processing, such as rolling or drawing, to form a cylindrical ring rough section material 2 having a T-shaped section consisting of a flange part 3 and skirt part 4. Thee resultant ring section material 2 is then formed into an annular shape of a given dimension and cut to a given length. Both cut ends (2a) and (2b) are butted to carry out welding 5 by electron beam welding, etc. The welded part is deburred and the flange part 3 is simultaneously finish machined to carry out heat treatment and surface treatment and form a ring body 6. The skirt part of the ring body 6 is subsequently mounted on a separately formed holder to afford the aimed ring.

7. 发明专利

JPS63249723A RING FOR SPINNING 失效
公开(公告)号：JPS63249723A
公开(公告)日：1988-10-17
申请号：JP8427287
申请日：1987-04-06
申请人： NIPPON SPINDLE MFG CO LTD
发明人： KINOSHITA HIROBUMI , NAKAMURA MAKOTO , HAMANA MIKIYO
IPC分类号： D01H7/60
摘要： PURPOSE:To obtain the titled ring, capable of reducing frictional resistance in running a traveler in the initial operation, remarkably reducing running-in operation time and eliminating yarn breakage, by forming a thin plating layer on the ring surface using Ni-P electroless plating. CONSTITUTION:A plating layer 3 having

8. 发明专利

JPS6228418A SPINNING RING 失效
公开(公告)号：JPS6228418A
公开(公告)日：1987-02-06
申请号：JP16332685
申请日：1985-07-23
申请人： NIPPON SPINDLE MFG CO LTD
发明人： HAMANA MIKIYO
IPC分类号： D01H7/60
摘要： PURPOSE:To obtain a ring with standing high-speed rotation, having improved corrosion resistance, by forming a vanadium carbide layer on the surface of a ring material made of a carbon steel, quenching and tempering the ring material and grinding the contact face with a traveler. CONSTITUTION:A ring material is made of a carbon steel such as a case hardening steel subjected to cementation treatment, having >=0.4wt% carbon content, the surface of the carbon steel is coated with a vanadium carbide layer having >=2,000VH hardness and 5-10mu thickness, quenched and tempered to improve adhesion strength of the surface carbide. Then, the contact face with a traveler is ground and the surface roughness is made into

9. 发明专利

JPS5540843A SPINNING RING 失效
公开(公告)号：JPS5540843A
公开(公告)日：1980-03-22
申请号：JP11305678
申请日：1978-09-14
申请人： NIPPON SPINDLE MFG CO LTD
发明人： IKENAGA MASARU , KINOSHITA HIROBUMI , HAMANA MIKIYO
IPC分类号： C23C8/22 , C23C8/32 , C23C8/34 , D01H7/60
摘要： PURPOSE:A spinning ring in which a layer of Fe-N compound and another layer of Fe-C-N martensite are formed on the surface on which the traveller slides, thus being capable of containing oil due to very fine pores near the surface and showing high lubricating performance because of its wearing and corrosion resistance. CONSTITUTION:The ring material of case-hardened steel (S 15 CK) containing 0.15wt% carbon is subjected to soft nitriding treatment A in a soft gas-nitriding furnace. Then, the temperature is gradually raised and on the way of heating (C- step) the gas fot the treatment A is evacuated and simultaneously another gas for carburizing is introduced. After the carburizing treatment is effected, the material is quenched by rapid cooling. The layers formed by the treatments A and C are little defective to give the stable and double layers of nitrided and carburized irons.

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