Superior performance Co-Ni Alloy Product (SPRON) Product Catalogue

Transcription

1 Superior performance Co-Ni Alloy Product (SPRON) Product Catalogue

2 Superior performance Co-Ni Alloy Product (SPRON) solves designers problems " " is a special metal (Co-Ni alloy) developed for mechanical watch springs, through collaboration with the Institute of Materials Research, Tohoku University. It has the excellent characteristics of high elasticity, durability, corrosion resistance, and heat resistance allowing to be used in wide-range of fields, including medical materials, small precision springs, and metal diaphragms, as well as springs for watches. CONTENTS SPRON SPRON CORROSION TEST DATA & GLOSSARY... 6 ENVIRONMENT & QUALITY POLICY... 7 IMPORTANT... 7 " " is the SII brand name coined from SPRING MICRON. As the name implies, our precision springs boast outstanding material properties and are machined to a precision finish controlled to the micron level.

3 SPRON1 OVERVIEW SPRON 1 is a strain age hardening type Co-Ni alloy that makes the most of the work-hardening properties of cobalt-based alloys. High mechanical strength and corrosion resistance combined with excellent precision processing technologies make it ideal for precision devices, medical precision parts, and precision screws, as well as mechanical watches. APPLICATIONS - Precision springs (coils, torsion springs, flat springs, disc springs) - Springs for measuring instruments - Cable guides for driving robot devices - Metal diaphragm for special valves - Medical precision parts - Wires for medical devices CHARACTERISTICS Mechanical and physical characteristics Tensile strength Up to 2156MPa (Up to 22kg/mm 2 ) Elongation Hardness Density Young s modulus Modulus of rigidity Linear expansion coefficient Electrical resistivity 26 to 216GPa 12 to % Hv. to to 8.6g/cm 8.4GPa / C 3 (21 to kg/mm 2 ) ( kg/mm 2 ) (2 to 5 C) 98 to 1μΩ-cm (Wire drawing material: cold processing + age treatment) Chemical components Other Relationship between mechanical characteristics and heat treatment temperature Relationship between heat treatment temperature and mechanical strength of SPRON Cr (Chromium) Fe (Iron) Chemical composition Ni (Nickel) Co (Cobalt) Hardness (Hv) Tensile strength (M Pa) Tensile strength Hardness Elongation Heat treatment temperature ( C) Elongation (%) Since SPRON 1 is a work-hardening and age-hardening material, an optimum mechanical strength can be obtained when it is heatprocessed between 5 C and 6 C after cold treatment. S-N curves Repeated stress σ (M Pa) S-N curves of SPRON 1 processing ratio at 6% 1,5 1,4 As rolled 1,3 5 C 2-hour age treatment 1,2 1,1 1, , 1, 1,, 1,, 1,, Cycle number to failure (N) The above graph shows the S-N curves when rolled materials with a 6% processing rate are bent for fatigue tests. The above graph also shows that the fatigue limit is 75 MPa when heat processing is performed at 5 C. SPRON

4 SPRON51 OVERVIEW SPRON 51 is a strain age-hardening type Co-Ni-Cr-Mo alloy with material characteristics that are more advanced than SPRON 1. It is non-magnetic and features ultra high elasticity and high mechanical strength, as well as high durability and heat resistance. CHARACTERISTICS APPLICATIONS - Metal diaphragms for clean valves - Metal diaphragms and pipes for mass flow controllers - Parts for pressure sensors (diaphragms and pipes) - Corrosion-resistant, precision processed parts - Precision parts for medical equipment - Precision springs (coils, torsion springs, flat springs, disc springs) Mechanical and physical characteristics Tensile strength Stiffness Up to 294MPa Up to 5684MPa (Up to 3kg/mm 2 ) (Up to 58kg/mm 2 ) (Wire drawing material: cold processing + age treatment) Elongation Hardness Density Young s modulus Modulus of rigidity Linear expansion coefficient Electrical resistivity 8.5 to to 225GPa 83.3GPa 12 to / C 98 to 1 3.% Hv. to 8 g/cm 3 (22 to kg/mm 2 ) ( kg/mm 2 ) (2 to 5 C) μω-cm Intensity of magnetization (5kOe) Chemical components Other Mo (Molybdenum) Relationship between mechanical characteristics and heat treatment temperature Relationship between heat treatment temperature and mechanical strength of SPRON Cr (Chromium) Chemical composition Ni (Nickel) Co (Cobalt) Hardness (Hv) Tensile strength (M Pa) Tensile strength Hardness Elongation Elongation (%) Heat treatment temperature ( C) The above graph shows the tensile strength, hardness, and elongation when material with a wire diameter of 1.mm and which has been subjected to a wire-drawing process with a process rate of 9% is heat-processed at each temperature for two hours. S-N curves Repeated stress σ (M Pa) S-N curves of SPRON 51 processing ratio at 73% 1,5 1,4 1,3 As rolled 5 C 2-hour age treatment 1,2 1,1 1, , 1, 1,, 1,, 1,, Cycle number to failure (N) The above graph shows the S-N curves when.13mm-thick materials with a 73% processing rate of roll drawing are bent for fatigue tests. The above graph also shows that the fatigue limit is 85 MPa when heat processing is performed at 5 C. 4 SPRON

5 SPRON51 Relationship between number of repetition and relaxation due to tensile spring tests Before During After Relationship between stress and relaxation due to tensile spring test Before During After 1 τ =43kg/mm 2 Δ Stress amplitude τ =67kg/mm 2 2kg/mm 2 (2.2Hz) Repeated stress N (τ N) 1 Stressτ Δ Δ Relaxation (%) 8 SPRON51 SPRON1 SWP-A SUS34-WPB [Measurement conditions] Wire diameter: φ.3mm Center diameter: φ 3mm Number of turns: 33 to 35 Free length: 16.mm 8 SPRON51 SPRON1 SWP-A SUS34-WPB [Measurement conditions] Wire diameter: φ.3mm Center diameter: φ 3mm Number of turns: 35 Free length: 16.5mm Relaxation (%) 6 4 Relaxation (%) 6 4 G=7.4kg/mm G=8.3kg/mm G=8.2kg/mm G=8.5kg/mm , 1, 1, 1,, 1,, 1,, Number of repetitions (N) Stress τ / (kg/mm 2 ) 17 Fatigue due to both statistical and dynamic loads is very small, thus achieving large spring load by a fine spring. High fatigue strength against repetition makes it resistant to fatigue breaking. Tensile strength (M Pa) Low-/high-temperature characteristics SPRON51 low temperature tensile testing Relationship between tensile strength and elongation at low temperature Tensile strength Annealed material 15 C (.5mm thick) Tensile strength Cold working ratio 73% (.135mm thick) Elongation Annealed material 15 C (.5mm thick) Elongation Cold working ratio 73% (.135mm thick) Temperature ( C) Elongation (%) The above shows that SPRON 51 features excellent characteristics in both low and high temperature ranges. Tensile strength (M Pa) SPRON 51 high temperature tensile testing Wire diameter: φ1. mm Relationship between tensile strength and elongation at high temperature Tensile strength Working ratio: 85% Tensile strength Annealed material Elongation Working ratio: 85% Elongation Annealed material Temperature ( C) Elongation (%) SPRON

6 CORROSION TEST DATA & GLOSSARY Corrosion Test Results 25 Annealing temperature of sample: 11 C 2 hours Surface condition of sample: Polished using #1 paper Test temperature: 6 C ± 5 C.25 2mm 1mm 3mm Corrosion weight loss (mg/cm 2 /H) Corrosion weight loss (mg/cm 2 /H) SPRON1 SPRON51 SUS34 SUS316L Inconel 6 Pure titanium Muriatic acid (1%) GLOSSARY Vitriolic acid (1%) Ferric chloride (1%) Copper chloride (1%) SPRON1 SPRON51 SUS34 SUS316L Inconel 6 Pure titanium Nitric acid (1%) Acetic acid (1%) Term Unit Description Citric acid Chromic acid Phosphoric acid (1%) (1%) (1%) Oxalic acid (1%) All data, dimensions, characteristics and values shown in this catalogue are for reference only. Please contact your local Seiko Instruments Representative for current detailed specifications. As rolling Stress MPa Roll drawing has completed. Stress value in fatigue test. Degree of cold deformation processing, such as wire drawing and rolling. Also known as cold working ratio. Rate of work The working ratio is the quotient of the sectional area divided by the difference between the sectional areas of the material before and after working, expressed in percentage (%). Vickers hardness Strength Cycle number to fallure Stiffness Electrical resistivity Intensity of magnetization Aging treatment Rate of wire drawing Coefficient of linear expansion Durability Corrosion resistance Heat resistance Young's modulus Elasticity Heat treatment Non-magnetic material Tensile strength Modulus of relaxation Bending stress S-N curves for the bending fatigue Modulus of rigidity Cold working Hv. N MPa (kg/mm 2 ) μω-cm G 1/K (1/ C) GPa (kg/mm 2 ) MPa (kg/mm 2 ) MPa GPa (kg/mm 2 ) The quotient of the force applied for the indent divided by the surface area of the indent which was produced on the test piece by an indenter (diamond square cone of which angle of opposite faces is 136 ). Mechanical strength such as tensile strength and hardness Number of repetitions for fatigue test. Maximum stress value in transverse test Electrical resistance ratio specific to a substance Magnetic flux density in a 5 KOe magnetic field Heat processing to improve mechanical characteristics by applying a specified temperature The rate of drawing is the quotient of the sectional area difference of material before and after working, divided by the sectional area of pre-worked material, expressed in percentage (%). The rate of length change in accordance with the temperature change Fatigue characteristics (characteristics resistant against repeated loads) Durability against corrosive gases and solvent Resistance to degredation of characteristics, such as mechanical strength, in a high temperature environment Proportional constant existing between vertical stress and vertical strain Young s modulus and modulus of rigidity Heat application and cooling of metallic materials in appropriate conditions to gain desired characteristics Property of barely being influenced, if at all, by magnetism Maximum stress value for tensile test Relaxation degree due to repeated loading by tensile coil spring model Force in specified area that arises when material is bent Graph showing the results of bending fatigue test (Stress and repetition counts are logarithmically expressed in the vertical and horizontal axes, respectively.) Proportional constant between stress and shear strain when shear force is applied Deformation processing performed at normal temperature * The above glossary was created based on terms appearing in the SII catalogues and does not certify the contents and products. 6 SPRON

7 ENVIRONMENT & QUALITY POLICY SPRON IMPORTANT 1. The information herein is subject to change without notice. 2. Neither reproduction, duplication nor unauthorized use of this catalog in whole or part is allowed without the prior written approval of Seiko Instruments Inc. 3. The colors of the products reproduced herein ("Products") may be different from the actual colors. Check colors on actual products before using the Products. 4. Circuits and respective application methods described herein are for reference only. Seiko Instruments Inc. shall not be liable for any damages or losses resulting from any claim by third parties that any Products or application methods described herein infringe any right intellectual property right. All intellectual property rights with respect to the Products belong exclusively to Seiko Instruments Inc. Seiko Instruments Inc. does not grant users of the Products any right or license to the Products hereunder. 5. When Products include Strategic Products (or Services) stipulated in the Foreign Exchange and Trade Control Law, they shall not be exported without permission of governmental authorities. 6. The Products are designed for consumer equipment and cannot be used as part of any device or equipment which influences the human body or requires a significantly high reliability, such as physical exercise equipment, medical equipment, disaster prevention equipment, gas related equipment, vehicles, aircraft and equipment mounted on vehicles. 7

8 Micro-Energy Division who manufactures the products described in this catalog holds the ISO 91 quality management system certificate, and the ISO 141 environmental management systems certificate. Micro-Energy Division 1-8, Nakase, Mihamaku, Chiba-shi, Chiba , Japan Telephone: Facsimile: Asia 4-5/F, Wyler Centre 2, 2 Tai Lin Pai Rd., Kwai Chung, N.T., Kowloon, Hong Kong Telephone: Facsimile: sales@sih.com.hk 6F, No.236, Sec.2, Jianguo N. Rd., Taipei 14, Taiwan Telephone: Facsimile: public@sii.co.jp Room 292, 29th Floor, Shanghai Plaza, 138 Mid Huaihai Rd., Shanghai 221, China Telephone: Facsimile: Europe #57, 58, Korea City Air Terminal Bldg., 159-6, Samsung-dong, Gangnam-gu, Seoul, Korea Telephone: Facsimile: North/Central/South America Siemensstrasse 9 D Neu Isenburg, Germany Telephone: Facsimile: info@seiko-instruments.de Lomita Blvd. Torrance, CA 955, U.S.A. Telephone: Facsimile: info@siu-la.com French Branch 17, Quai du Docteur Dervaux F-926 Asnieres-Sur-Seine, France Telephone: Facsimile: info@seiko-instruments.fr (Specifications are subject to change without notice.) Released in October 21 No.CAS11EJ5-1C