List of Spring products

[Reproduction of Private Spring Preparatory School Lecture 47] The inseparable relationship between bamboo and springs! An explanation of how it utilizes elasticity.

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[Reproduction of Private Spring Preparatory School Lecture 46] Introducing songs about mainsprings, songs that encourage quality control, and songs related to painting and spring surfaces!

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[Reproduction of Private Spring Preparatory School Lecture 45] The usable temperatures of various steel wires and JIS related to wire springs are also included in the table!

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[Reproduction of Private Spring Preparatory School Lecture 44] Shot peening is a surface treatment! Explanation of the final process setting as well.

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[Reproduction of Private Spring Preparatory School Lecture 43] Fine matte texture on airplane parts! Explanation of shot peening.

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[Reproduction of Private Spring Preparatory School Lecture 42] Thin wire springs, thick wire springs! An explanation of the issues of end face grinding and shot peening for both.

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[Reproduction of Private Spring Preparatory School Lecture 41] Low-temperature annealing is commonly referred to as bluing! The blue color is the color of the iron oxide film formed on the surface of ...

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[Reproduction of Private Spring Preparatory School Lecture 40] Explanation of the changes in mechanical properties due to low-temperature annealing of piano wire and oil-tempered wire!

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[Reproduction of Private Spring Preparatory School Lecture 39] An explanation of how the tensile strength of spring steel wire significantly affects coiling!

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[Reproduction Private Spring Preparatory School Lecture 38] Make sure to check that there are differences in price depending on the type of line and the line diameter!

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[Reproduction of Private Spring Preparatory School Lecture 37] Introduction to unique heat treatments such as patenting, acid pickling, wire drawing, and oil tempering!

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[Reprint Private Spring Preparatory School Lecture 36] An explanation of the differences between the brothers of spring steel wire and their growth processes!

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[Reproduction of Private Spring Preparatory School Lecture 35] Introduction to the JIS numbers, symbols, and chemical components (only carbon and manganese content) of three types of wire materials!

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[Reproduction of Private Spring Preparatory School Lecture 34] Introduction to soft steel wire, hard steel wire, piano wire, and welding rod core wire!

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[Reprint Private Spring Preparatory School Lecture 33] What you need to be careful about is overheating! An introduction to defects that are likely to occur during heat treatment.

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[Reproduction of Private Spring Preparatory School Lecture 32] Explanation of the relationship between temperature and elongation when heated slowly and cooled slowly!

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[Reproduction of Private Spring Preparatory School Lecture 31] Explaining how tempered martensite changes through tempering!

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[Reproduction of Private Spring Preparatory School Lecture 30] Explaining what happens when the cooling speed from high temperatures is changed!

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[Reproduction of Private Spring Preparatory School Lecture 29] Pure iron at room temperature undergoes a sudden transformation into gamma iron when the temperature rises to 910 degrees!

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[Reproduction Private Spring Preparatory School Lecture 28] We are explaining using a diagram that shows the carbon content and the proportion of organizational components in steel!

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[Reprint Private Spring Preparatory School Lecture 27] Explanation of the load and elongation diagram in the tensile test of steel!

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[Reproduction Private Spring Preparatory School Lecture 26] As the amount of carbon increases, both tensile strength and yield point increase!

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[Reproduction of Private Spring Preparatory School Lecture 25] The relationship between the transition of cultures such as stone tools, bronze tools, and iron tools and spring materials!

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[Reproduction of Private Spring Preparatory School Lecture 24] An explanation of the miracle cure for improving fatigue resistance, shot peening, and other important considerations!

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[Reproduction of Private Spring Preparatory School Lecture 23] Explanation of methods to prevent the decline of fatigue strength and surface treatments aimed at corrosion protection!

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[Reproduction of Private Spring Preparatory School Lecture 22] Explanation of the relationship between oxides that form on metal surfaces, namely rust, and fatigue strength!

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[Reproduction of Private Spring Preparatory School Lecture 21] Yielding and fatigue destruction are related not only to the maximum surface stress but also to the stress at a certain depth from the su...

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