CN-121994858-A - Flexible multichannel cooling thermal simulation test device and method

CN121994858ACN 121994858 ACN121994858 ACN 121994858ACN-121994858-A

Abstract

The invention belongs to the field of thermal simulation tests, and particularly relates to a flexible multichannel cooling thermal simulation test device and method, wherein the flexible multichannel cooling thermal simulation test device comprises a frame component, a lifting sliding frame, a material clamping jaw, a fan cooling module, an air-jet cooling module, a water mist cooling module, a water spray cooling module and a water quenching cooling module, wherein the top of the frame component is connected with a winch, the winch drags the lifting sliding frame through a steel wire rope, the lifting sliding frame is connected with the material clamping jaw, and the material clamping jaw is used for clamping a test board; the frame component is internally symmetrically provided with a fan cooling module, an air spraying cooling module, a water mist cooling module, a water spraying cooling module and a water quenching cooling module, and the winch drives the lifting carriage to lift so that each cooling module which is symmetrically arranged can be aligned to the test board for cooling. The invention can effectively meet the simulation requirements of metal materials on different cooling rates in different industrial heat treatment processes and laboratory researches, and solves the technical problems of single cooling mode and limited cooling capacity coverage range of the traditional thermal simulation equipment.

Inventors

WANG YADONG
WEI JIANHUA
ZHOU HONGWEI
FU DONGHE
YANG DECAO
GUO XIAOJING

Assignees

本钢板材股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260330

Claims (10)

1. A flexible multichannel cooling thermal simulation test device is characterized by comprising a frame component, a lifting sliding frame, material clamping jaws, a fan cooling module, an air spraying cooling module, a water mist cooling module, a water spraying cooling module and a water quenching cooling module, wherein the top of the frame component is connected with a winch, the winch drags the lifting sliding frame through a steel wire rope, the lifting sliding frame is connected with the material clamping jaws, the material clamping jaws are used for clamping test boards, the fan cooling module, the air spraying cooling module, the water mist cooling module, the water spraying cooling module and the water quenching cooling module are symmetrically arranged in the frame component, the water quenching cooling module is arranged at the bottom of the frame component, and the winch drives the lifting sliding frame to lift, so that each symmetrically arranged cooling module can be aligned to the test boards for cooling.
2. The flexible multi-channel cooled thermal simulation test device according to claim 1, wherein the fan cooling module comprises two speed regulating fans and a connecting end plate, one side of each speed regulating fan is fixedly connected with the connecting end plate, and each speed regulating fan can blow air to the test board clamped by the material clamping jaw.
3. The flexible multi-channel cooled thermal simulation test device according to claim 2, wherein the connecting end plate is connected with a piston rod of a telescopic cylinder, the cylinder body of the telescopic cylinder is connected with the frame assembly, and the telescopic cylinder drives the connecting end plate to reciprocate so as to drive the fan to be far away from or close to the test board.
4. A flexible multichannel cooled thermal simulation test apparatus according to claim 1, wherein the air jet cooling module comprises two slot nozzles capable of jetting compressed air to a test sheet held by the material holding jaw.
5. The flexible multichannel cooling thermal simulation test device according to claim 4, wherein the air-jet cooling module further comprises a first tee joint pipe and an air flow pipe, the first tee joint pipe is fixedly arranged at the air inlets of the two groove-type nozzles, a pressure regulating valve and a flowmeter are fixedly arranged at the end part of the first tee joint pipe, the air outlet of the air compressor is connected with an air flow conduit, and the air flow conduit is connected with the two groove-type nozzles through the flowmeter, the pressure regulating valve and the first tee joint pipe.
6. A flexible multichannel cooled thermal simulation test apparatus according to claim 1, wherein the water mist cooling module comprises two air-water dual medium spray heads capable of spraying water mist to the test sheet clamped by the material clamping jaws.
7. The flexible multichannel cooled thermal simulation test device according to claim 1, wherein the water spray cooling module comprises a water supply tank and water flow nozzles, wherein a plurality of water flow nozzles are equidistantly arranged on the side of the water supply tank, and the water flow nozzles can spray water flow to a test plate clamped by the material clamping jaws.
8. The flexible multichannel cooling thermal simulation test device according to claim 1, wherein the water quenching cooling module comprises a water quenching stainless steel groove, electric heating pipes are arranged at four corners of an inner cavity of the water quenching stainless steel groove, and a quenching medium is arranged in the inner cavity of the water quenching stainless steel groove.
9. The flexible multi-channel cooled thermal simulation test device according to claim 1, wherein the frame assembly comprises supporting columns, top mounting frames and mounting top frames, the top mounting frames are connected to the tops of the supporting columns, and the mounting top frames are fixed to the tops of the top mounting frames.
10. A method of thermal simulation of flexible multichannel cooling implemented by a device according to any of the claims 1-9, comprising the steps of: s1, configuration and implementation methods of a cooling module are as follows: according to a preset thermal simulation process curve, the use sequence and the installation position of different cooling modules are configured according to the requirements of specific application scenes: The standard installation mode is that the cooling module comprises a fan cooling module, an air spray cooling module, a water mist cooling module, a water spray cooling module and a water quenching cooling module from top to bottom in sequence, wherein the position of the water quenching cooling module is fixed; The accurate positioning mode is that on the basis of a standard mounting mode, if different cooling modules are required to be switched for testing according to a thermal simulation process curve, an absolute value encoder is connected to a winch, and the winch drives a test board to move, so that the test board is accurately butted to a target cooling module; if the layout of the cooling module is adjusted, only the installation positions and the sequence of the fan cooling module, the air spray cooling module, the water mist cooling module and the water spray cooling module are allowed to be adjusted; s2, clamping and positioning of test boards: Firstly, cleaning the surface of a test board, welding a thermocouple to a preset temperature measuring point of the test board by using a miniature spot welding device, stably clamping the test board by using a material clamping claw, driving a winch according to the cooling module configuration scheme determined in the step S1, driving the test board to vertically move, and accurately positioning a region to be cooled of the test board to the action center of a target cooling module; s3, executing a cooling process: after the test sheet is heated to the required initial cooling temperature for the thermal modeling process curve, the in-situ target cooling module is started and cooling begins, and the cooling modes can be divided into the following two modes: the single module is used for cooling according to preset parameters under the action of the single cooling module; The multi-module is used for executing rapid switching among the cooling modules when continuous multi-section different cooling is carried out, and immediately acting the winch when the previous cooling module reaches the cooling end point condition to transfer the test board to the next preset cooling module; s4, terminating the experiment and safely unloading the sample: After the whole thermal simulation experiment flow is finished, the cooling monitoring stage is carried out, and samples are removed after the whole temperature of the test plate is reduced to below 50 ℃ according to thermocouple detection temperature data; s5, associating the sample identification with data: And after cleaning or drying the removed test plate, numbering, wherein the numbering is related to the thermal simulation process curve number, the cooling module configuration parameter and the time-temperature data recorded in the thermal simulation process corresponding to the test, so as to form a data chain from the process parameter to the sample mark and then to the process data, and data support is provided for subsequent material tissue performance analysis.

Description

Flexible multichannel cooling thermal simulation test device and method Technical Field The invention belongs to the field of thermal simulation tests, and particularly relates to a flexible multichannel cooling thermal simulation test device and method. Background The thermal simulation test device is a key device for evaluating the thermal processing performance of metal materials in material science research, and is characterized in that the thermal cycle process in industrial production is simulated to analyze the tissue evolution rule and the performance change trend of the materials under different process conditions. Cooling during thermal simulation testing is a key element in controlling the phase change process of the material, obtaining the desired microstructure and determining the final properties. By accurately regulating and controlling the cooling rate and the cooling path, the cooling conditions of the steel in actual rolling, welding or heat treatment are simulated, and the phase transformation type of the material, such as the formation proportion and the form of martensite, bainite and ferrite, is directly determined, so that the strength, the toughness and the service performance of the material are further affected. However, most of the existing thermal simulation test devices still have significant limitations in the implementation of the cooling function. Common cooling modes, such as fan cooling, air-jet cooling, water mist cooling, water quenching and the like, are usually realized by mutually independent modules. This discrete design results in a low integration of the entire cooling system. When it is necessary to switch the cooling process in different tests, the disassembly and replacement of the modules must be performed manually. The process is complex in operation and time-consuming, and more importantly, the relative position precision between the cooling module and the sample is difficult to ensure by manual reinstallation. The positioning deviation caused by each replacement can directly lead to inconsistent cooling conditions, thereby seriously affecting the accuracy and repeatability of experimental results. The patent application number is CN202310918646.7, discloses a quenching device of a thermal simulation testing machine, which is an external water tank device with a manipulator and a sealing box, and after the experiment is finished, a sample is quickly knocked down into water, and then the sealing box is sealed for vacuumizing. The patent application number is CN202110518977.2, discloses a continuous annealing simulation device and an experimental method for a steel sample, wherein the simulation device is provided with a special fixture and cooling arrangement, the purpose of adjusting the cooling speed is achieved by controlling the output pressure of a cooling air source, a first cooling nozzle and a second cooling nozzle cool a first position and a second position of the steel sample, and after cooling is finished, continuous annealing simulation for the steel sample is completed. The tensile sample after thermal simulation breaks at a temperature control thermocouple point (a temperature equalizing area) so as to ensure accurate performance data. The method adopts a method of strong cold at two ends and weak cold in the middle to mold a mechanical weak point. The patent application number is CN202121455751.4, an ultralow temperature quenching device for a thermal simulation test machine is disclosed, an adjustable bracket, a refrigerator, an electromagnetic valve, a high-pressure metal pipeline and an external high-pressure air source are arranged in a vacuum working cavity, external high-pressure air is used as a source, the electromagnetic valve is used as a control element and connected into the working cavity of the thermal simulation test machine through the metal pipeline, the adjustable bracket in the working cavity is utilized to realize accurate positioning, the high-pressure air is sprayed on the surface of a thermal simulation sample in a liquid coolant form through the refrigerator, ultralow temperature quenching of the sample is realized through gasification and heat absorption of the liquid coolant, and the ultralow temperature quenching process of the thermal simulation sample is controlled by the electromagnetic valve. The patent application number is CN201611052009.2, a test method for simulating a cooling process after rolling a hot rolled steel plate is disclosed, and comprises the steps of 1) preparing a test, connecting a water spray pipe of a quenching system of a thermal simulation tester into a working box, adjusting and fixing a cooling water spray nozzle, 2) adopting a thermocouple temperature control mode to obtain a set average value of power angles of a cooling start temperature and a cooling end temperature, 3) taking out a sample installed in the thermal simulation working box, repeating the step 1), 4) inserting a start switch