A kind of low-carbon aluminum-killed steel hot-dip galvanized sheet and production method thereof
A technology of low-carbon aluminum killed steel and hot-dip galvanized sheet, applied in the direction of temperature control, etc., can solve the problems of waste, lack of measuring the bending and ridges of hot-dip galvanized sheet, and inability to effectively inspect products, so as to reduce the inhibitory effect and avoid The effect of bending the edge and increasing the curling temperature
Active Publication Date: 2016-09-28
SHOUGANG CORPORATION
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The head and tail of hot-dip galvanized coils can only be cut off and downgraded or completely become waste products, resulting in a lot of waste
[0005] In addition, at present, steel mills lack a characterization method to measure whether the hot-dip galvanized sheet will be bent and edged after color coating, and it is impossible to carry out effective inspection of the product before leaving the factory
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 Construction
[0046] see figure 1 , a low-carbon aluminum-killed steel hot-dip galvanized sheet provided in the embodiment of the present invention. In order to understand the present invention in depth, the present invention will be described in detail below with reference to the accompanying drawings, taking the low-carbon aluminum-killed steel hot-dip galvanized sheet DX51D+Z as an example .
[0047] The chemical composition mass percentage of low carbon aluminum killed steel is:
[0048] C: 0.015% to 0.08%;
[0049] Si: less than or equal to 0.03%;
[0050] Mn: 0.10%~0.15%;
[0051] P: less than or equal to 0.020%;
[0052] S: less than or equal to 0.010%;
[0053] Al: 0.035% to 0.06%;
[0054] N: less than or equal to 0.0020%;
[0055] The balance is Fe and unavoidable impurities.
[0056] Wherein, the chemical composition mass percentages of the low-carbon aluminum-killed steel hot-dip galvanized sheet DX51D+Z provided by the present invention can be respectively
[0057] C, ...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the technical field of metallic material processing, and discloses a low-carbon aluminum killed steel hot-dip galvanized sheet and a production method thereof. The low-carbon aluminum killed steel comprises chemical components in percentage by mass as follows: 0.015%-0.08% of C, smaller than or equal to 0.03% of Si, 0.10%-0.15% of Mn, smaller than or equal to 0.020% of P, smaller than or equal to 0.010% of S, 0.035%-0.06% of Al, smaller than or equal to 0.0020% of N and the balance of Fe and inevitable impurities. In the aspect of chemical components, bending ribbing of the low-carbon aluminum killed steel hot-dip galvanized sheet is avoided after color coating. The invention further discloses the production method of the low-carbon aluminum killed steel hot-dip galvanized sheet. The production method comprises the following steps: coiling temperatures higher than that of the middle part are adopted respectively for different lengths of the head part and the tail part of a hot rolled sheet, the coiling temperature of the middle part of the hot rolled sheet is set according to carbon content, the annealing temperature is 750 DEG C plus or minus 5 DEG C in a range of 650-730 DEG C, and the finishing elongation is 0.8%-1.9%. Bending ribbing of whole roll of the hot-dip galvanized sheet especially the head and tail parts after color coating can be avoided in the aspect of the production method.
Description
technical field [0001] The invention relates to the technical field of metal processing, in particular to a low-carbon aluminum-killed steel hot-dip galvanized sheet and a production method thereof. Background technique [0002] The general process of producing home appliance panels with hot-dip galvanized sheets is: color coating-shearing-bending forming. The color coating process is to apply the organic paint on the surface of the hot-dip galvanized sheet, and complete the curing after baking. The baking temperature is generally 210-250°C. The aluminum-killed steel hot-dip galvanized sheet after color coating often has edges during the bending process, resulting in a high reject rate and increasing the cost. [0003] The essential reason for the edge formation of the aluminum-killed steel hot-dip galvanized sheet is the strain aging phenomenon, that is, after the hot-dip galvanized sheet is baked at a high temperature in the color coating process, a large number of solid-...
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): C22C38/06B21B37/74
Inventor 胡燕慧滕华湘张浩尉冬李洁刘光明
Owner SHOUGANG CORPORATION