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US 12,220,770 B2Granted
Pre-stressed steel sheet
AssigneePosco
InventorJae-Yik Lee
Life of this patent
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Abstract
The present disclosure provides a pre-stressed steel sheet comprising: a base material; and a plurality of weld lines formed on the base materials, wherein the average spacing between each pair of the weld lines is equal to or greater than five times the width of the weld lines and equal to or less than half the width of the steel sheet.
Claims10
A pre-stressed steel sheet, comprising:
- a base material;
- and
- a plurality of weld lines formed on the base material,
- wherein an average spacing between a weld line and an adjacent weld line among the plurality of weld lines is equal to or greater than five times a width of the weld lines and equal to or less than ½ times a width of the steel sheet, and
- wherein a number of the plurality of weld lines is 2×(L/W) or more,
- where L is a length of the steel sheet and W is the width of the steel sheet.
3 more elements
Dependencies are inferred from the claim text.