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Test method for improving response speed of hot-rolled laminar cooling water valve

A technology of response speed and test method, applied in workpiece cooling devices, metal rolling, length measuring devices, etc., can solve the problems of low strip coiling temperature compliance rate, uneven response time, and uneven strip cooling. Achieve the effect of improving statistical efficiency and valve maintenance cycle, reducing accident rate and reducing errors

Inactive Publication Date: 2020-08-25
BAOTOU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the current production problem of only relying on a stopwatch to manually count the response time of the layer cooling water valve by providing a test method for improving the response speed of the laminar flow cooling water valve and the uneven response time of the laminar flow cooling water valve , and even technical problems such as low compliance rate of strip coiling temperature caused by non-response, wave shape caused by uneven cooling of strip steel, etc., achieved technical effects of improving coiling temperature hit rate, improving product quality, and reducing accident rate

Method used

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  • Test method for improving response speed of hot-rolled laminar cooling water valve
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  • Test method for improving response speed of hot-rolled laminar cooling water valve

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Embodiment Construction

[0021] Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing:

[0022] A test method for improving the response speed of a hot-rolled laminar flow cooling water valve, which mainly includes the following steps:

[0023] a. Line connection, connect the prepared end to the power line of the test handle and the terminal box of the laminar flow cooling water valve to collect the signal of the handle to the inside of the system;

[0024] b. Fix the line to avoid disconnection caused by dragging the handle during the retest process, which will affect the test effect;

[0025] c. Lay the line, lay the line of the connection number to the first group of water valves of the laminar flow cooling water, and reserve a sufficiently long (about 20 meters) line.

[0026] 2. The computer-operated terminal setting of the present invention mainly includes the following steps:

[0027] a. Set the spray mode to Auto in the secondary operatio...

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Abstract

The invention discloses a test method for improving the response speed of a hot-rolled laminar cooling water valve. The test method comprises the following steps that test handles are directly connected to a laminar cooling water valve terminal box to ensure that laminar cooling water valves simulate water valves to be automatically opened and closed one by one in the actual production process; atester respectively presses the test handles at the time when the laminar cooling water just touches a laminar cooling roller way and the laminar cooling water is completely closed, at the moment, a computer can record the log about the opening and closing interval time of the water valve, centralized statistics is carried out after the test is completed, the water valve with the response time exceeding the limit is calculated, and a water valve scoring system is put into use. The investment of the method reduces the error of manually counting the time of the water valve by using a stopwatch at present, the counting efficiency and the maintenance period of the water valve are improved, and the state of the water valve is ensured.

Description

technical field [0001] The invention relates to a test method for improving the response speed of a laminar flow cooling water valve in hot rolling, which is mainly used for accurate testing and efficient optimization of the response time of the water valve in a production line that uses laminar flow cooling water to control the final rolling temperature of strip steel in various steel mills. Thereby improving product quality. Background technique [0002] At present, the laminar flow cooling system is used in the hot rolling production lines of domestic and foreign iron and steel enterprises. Its main function is to quickly cool the finish rolling outlet according to the target temperature set by coiling, so as to achieve the target set value to ensure the product quality of the strip. performance. [0003] With the increase of the hot-rolled 2250mm output of the rare earth steel plate factory, the quality of hot-rolled products has also become higher, and the requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B38/00B21B45/02
CPCB21B38/00B21B45/0233
Inventor 王磊张鹏鹏刘婷付芳欣赵勇柳志钢
Owner BAOTOU IRON & STEEL GRP
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