Method and device for forming short side end of unequal angle steel
A technology of edge angle steel and unequal, which is applied in the forming field of the short side end, which can solve the problem of uneven coating and achieve the effect of smooth forming and simple structure
Active Publication Date: 2015-09-02
JFE STEEL CORP
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0072] The short-side ends were formed by the forming method of the present embodiment using unequal-side and unequal-thickness angle steel with a long-side dimension of 350 mm and a short-side dimension of 100 mm in the cross-sectional shape.
[0073] As a result, when manufacturing angle steel products with unequal sides and unequal thicknesses that require strict tolerances for edges, the edges can be kept below the tolerances over the entire length without feeding into a trimming line.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A short-side end molding device has a molding roller (20) that, in a hot rolling step for an unequal angle steel, presses and molds an end part (201b) of the short side (201) of an unequal angle steel (200) that has undergone an intermediate rolling step or a finishing rolling step using a molding part (22), as the end part (201b) is caused to pass over the molding part (22), which is formed in an outer peripheral surface (21), in the circumferential direction of the molding part. The molding part (22) is formed in a recessed shape over the entire circumference of the outer peripheral surface (21) of the molding roller (20). The shape of the molding roller (20) along the axial direction is an arc shape and a linear shape adjacent to the arc shaped portion (22a), and the linear shaped portion (22b) matches the tangent (t) of the adjacent end part (22c) of the arc shaped portion (22a).
Description
technical field [0001] The present invention relates to the forming technology of the short side end of unequal-side and unequal-thickness angle steel and other unequal-side angle steel often used in shipbuilding. Background technique [0002] Angles with unequal sides and unequal thicknesses, which are often used in shipbuilding, have been manufactured by hot rolling. Specifically, in the hot rolling process, the steel slab as the raw material is heated in the heating process, and then, in the rough rolling process and the intermediate rolling process, multi-pass shape rolling is performed by each rolling mill to form a nearly square shape. cross-sectional shape. Then, in the finish rolling process, one pass of form rolling is performed to process it into a predetermined cross-sectional shape. [0003] Figure 9 It is a perspective view showing the shape of the unequal-thickness angle steel 200. [0004] Such as Figure 9 As shown, the unequal sides and unequal thickness...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/09B21B27/02
CPCB21B1/09B21B27/02
Inventor 山口盛康冈本成夫吉光照信芳井康隆山口阳一郎
Owner JFE STEEL CORP