JP2016517915A5

JP2016517915A5 -

Info

Publication number: JP2016517915A5
Application number: JP2016506734A
Authority: JP
Filing date: 2014-04-13
Publication date: 2017-05-25

Claims

Steel products, including heat treating machined low carbon steel products, medium carbon steel products, or high strength low alloy steel products to maintain or increase the ductility of the steel and maintain or increase the yield stress of the steel. How to manufacture.

Heat treat machined low carbon steel products, medium carbon steel products, or high strength low alloy steel products to maintain or increase the ductility of the steel, maintain or increase the yield stress of the steel, and increase the tensile strength of the steel A method of manufacturing a steel product comprising maintaining or increasing.

3. A method according to claim 1 or 2, wherein the increase in ductility, measured as elongation of the heat treated steel, is greater than 5% compared to the ductility of the machined steel.

4. A method according to any one of claims 1 to 3, wherein the increase in the yield stress of the heat treated steel compared to the yield stress of the machined steel is greater than 5%.

(A) machining the raw steel of low carbon steel, medium carbon steel, or high strength low alloy steel;
(B) heat treating the machined raw steel to maintain or increase the ductility of the steel and maintain or increase the yield stress of the steel;
(C) forming the steel product.

6. The method of claim 5, wherein the machining step (a) comprises cold rolling or drawing, or any other suitable machining step that reduces the cross-sectional area of the raw steel.

The machining step (a) includes cold rolling or drawing or any other suitable machining step that changes the cross-sectional shape of the raw steel without necessarily changing the cross-sectional area, so that the shape change 6. A method according to claim 5, wherein the energy required to cause is input.

(A) machining a low carbon steel product, a medium carbon steel product, or a high strength low alloy steel product;
(B) heat treating the machined steel product, increasing the ductility of the steel, and maintaining or increasing the yield stress of the steel.

9. The method of claim 8, wherein the machining step (a) comprises cold rolling or drawing or any other suitable machining step that reduces the cross-sectional area of the steel product.

The machining step (a) includes cold rolling or drawing or any other suitable machining step that changes the cross-sectional shape of the raw steel without necessarily changing the cross-sectional area, so that the shape change 9. A method according to claim 8, wherein the energy required to cause is input.

(A) machining the raw steel of low carbon steel, medium carbon steel, or high strength low alloy steel;
(B) forming a steel product from the machined raw steel;
(C) heat treating the steel product, increasing the ductility of the steel product, and maintaining or increasing the yield stress of the steel product.

(A) machining the raw steel of low carbon steel, medium carbon steel, or high strength low alloy steel;
(B) forming a steel product from the machined raw steel;
(C) heat-treating the formed steel product, increasing the ductility of the steel product, and maintaining or increasing the yield stress and tensile strength of the steel product.

13. A method according to claim 11 or 12, wherein the machining step (a) comprises cold rolling or drawing or any other suitable machining step that reduces the cross sectional area of the raw steel.

The machining step (a) includes cold rolling or drawing or any other suitable machining step that changes the cross-sectional shape of the raw steel without necessarily changing the cross-sectional area, so that the shape change 13. A method according to claim 11 or 12, wherein the energy required to cause is input.

15. The method according to any one of claims 1 to 14, wherein the steel is a high strength low alloy steel.

The method according to any one of claims 1 to 14, wherein the steel is a low carbon steel.

15. A method according to any one of claims 1 to 14, wherein the steel is medium carbon steel.

Select raw carbon steel of low carbon steel, medium carbon steel, or high strength low alloy steel as the starting material for steel products, and the machining and heat treatment time and heat treatment temperature conditions of the products made from raw steel or raw steel Select to provide the required mechanical properties for the product, perform machining and heat treatment steps, maintain or increase the ductility of the steel, maintain or increase the yield stress of the steel, required A method of manufacturing a steel product comprising manufacturing a product having mechanical properties.