A device for testing the heat resistance of rubber materials
By designing multiple testing chambers and a duct system in the rubber material testing device, heat resistance performance testing under multiple conditions was achieved, solving the problem of the simple structure of existing equipment and improving the accuracy and reliability of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HUILONG HYDRAULIC TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-30
AI Technical Summary
Existing equipment for testing the heat resistance of rubber materials has a simple structure and a single design, which affects the accuracy and reliability of experimental results.
A test chamber with multiple test chambers spaced apart was designed. Each test chamber is equipped with heating wires and ventilation holes, as well as a blower and branch duct system. A controller is used to simulate the aging process under various experimental conditions, and a comparative method is used to test the heat resistance performance.
It enables heat resistance performance testing under various experimental conditions, improves the accuracy and reliability of testing, reduces costs, and features an integrated design, compact structure, and good horizontal comparison effect.
Smart Images
Figure CN224436206U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rubber material technology, and in particular relates to a device for testing the heat resistance of rubber materials. Background Technology
[0002] Rubber material performance testing can be conducted according to standards such as ISO, ASTM, DIN, GB, and HB to test the physical and chemical properties and mechanical properties of raw rubber, vulcanized rubber, rubber products, and rubber additives. Rubber properties can be divided into two main categories: structural properties and functional properties. Structural properties refer to mechanical properties such as high elasticity and strength, while functional properties refer to the physical and chemical properties of rubber, such as resistance to media, electrical insulation, and chemical corrosion resistance.
[0003] Existing tests for the heat resistance of rubber materials mainly include hot air aging tests and thermo-oxidative aging tests. Hot air aging tests simulate the aging process by controlling temperature and ventilation frequency (3-10 air changes per hour). Thermo-oxidative aging tests test the physical properties (such as tensile strength and hardness) of samples after aging at a specified temperature and compare them with the original properties to evaluate heat resistance. However, existing hot air aging tests have simple structures, limited design, and affect the experimental results. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the existing technology, the purpose of this utility model is to provide a device for testing the heat resistance of rubber materials, which effectively solves the problem of simple structure and single design of hot air aging test.
[0005] The technical solution to the technical problem is as follows: It includes a box body, with multiple testing chambers spaced apart inside the box body. A tray is slidably connected to the front and back of each testing chamber. Rubber material is placed on the tray. A heating wire is installed in the testing chamber above the tray. The testing chamber has multiple vent holes located below the tray. A blower is installed on the outside of the box body. The blower is connected to a main air duct. The main air duct is connected to a cavity. A branch air duct is installed in the box body and is connected to the testing chamber. The air outlet of the branch air duct is located directly above the heating wire. The other end of the branch air duct is connected to the cavity. A regulating valve is installed on the branch air duct.
[0006] Preferably, the housing is hinged with a cabinet door corresponding to the testing chamber. The cabinet door is made of transparent material and has a handle installed on the outside.
[0007] Preferably, the box body has slots located on both sides of the tray, and the tray slides back and forth within the slots.
[0008] Preferably, the detection chamber contains solid...
[0009] It is equipped with a temperature sensor and a wind speed sensor.
[0010] Preferably, a control box is installed on the outside of the enclosure.
[0011] This invention has the following advantages over traditional equipment: the internal chamber is divided into multiple testing chambers, the structure is compact, the horizontal comparison effect is good, the integrated design reduces costs, the heating wire heats the chambers, the blower ventilates the testing chambers through branch ducts, the control effect is good, the reference is good, the data is reliable, the comparative method is used, a variety of experiments can be performed, and the heat resistance test effect of rubber materials is good. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0014] Reference numerals: 1. Box body; 2. Testing chamber; 3. Tray; 4. Heating wire; 5. Vent; 6. Blower; 7. Main air duct; 8. Cavity; 9. Branch air duct; 10. Regulating valve; 11. Cabinet door; 12. Handle; 13. Card slot; 14. Controller. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0016] Depend on Figures 1 to 2 A device for testing the heat resistance of rubber materials is provided, comprising a housing 1, with multiple testing chambers 2 spaced apart inside the housing 1, a tray 3 slidably connected to the front and back of each testing chamber 2, on which rubber material is placed, a heating wire 4 installed above the tray 3 in each testing chamber 2, and multiple vent holes 5 located below the tray 3 in each testing chamber 2, a blower 6 installed on the outside of the housing 1, the blower 6 being connected to a main air duct 7, the main air duct 7 being connected to a cavity 8, a branch air duct 9 installed on the housing 1 and connected to the testing chambers 2, the air outlet of the branch air duct 9 being located directly above the heating wire 4, the other end of the branch air duct 9 being connected to the cavity 8, and a regulating valve 10 installed on the branch air duct 9.
[0017] The housing 1 is hinged to a cabinet door 11 corresponding to the testing chamber 2. The cabinet door 11 is made of transparent material and a handle 12 is installed on the outside of the cabinet door 11.
[0018] To ensure the stability of the sliding of the tray 3, the box 1 is fixed with slots 13 located on both sides of the tray 3, and the tray 3 slides back and forth in the slots 13.
[0019] A temperature sensor is fixed inside the detection chamber 2.
[0020] A controller 14 is installed on the outside of the housing 1. The controller 14 can be easily programmed by those skilled in the art and is common knowledge in the field. It is only used and not improved.
[0021] In use, this invention employs a comparative method for experimentation. Identical rubber materials are placed in different testing chambers 2. The cabinet door 11 is opened, a tray 3 is pulled out, and the rubber material is placed on the tray 3. The tray 3 is then reset in the slot 13. The cabinet door 11 is closed, and the controller 14 is set. Since the temperatures of each testing chamber 2 are different, the blower 6 is started. The blower 6 pressurizes the gas to the main air duct 7 and the cavity 8, and finally pressurizes the gas to each branch air duct 9. The branch air duct 9 blows the gas onto the heating wire 4 of the testing chamber 2, and then discharges it from the vent 5. All regulating valves 10 are set identically (same ventilation volume) and the same ventilation frequency (3-10 air changes per hour). The aging process is simulated, and the heat resistance of each rubber material is observed through the transparent cabinet door 11 to obtain the effect of temperature on the heat resistance of the rubber material.
[0022] Another comparative experiment was conducted in which the temperature in test chamber 2 was the same, the settings of each regulating valve 10 were different (different ventilation volumes), and the ventilation frequency was the same (3-10 air changes per hour). The effect of ventilation volume on the heat resistance of rubber materials was summarized during the aging process of the rubber materials.
[0023] It can also measure the heat resistance performance of different rubber materials under the same temperature and ventilation volume when the indoor temperature is the same, the settings of each regulating valve 10 are the same (same ventilation volume), the ventilation frequency is the same (3-10 air changes per hour), and the rubber materials in each test chamber 2 are different.
[0024] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.
Claims
1. A device for testing the heat resistance of rubber materials, characterized in that, The box includes a housing (1), which has multiple test chambers (2) spaced apart. A tray (3) is slidably connected to the test chamber (2) and a rubber material is placed on the tray (3). A heating wire (4) is installed in the test chamber (2) above the tray (3). The test chamber (2) has multiple vent holes (5) below the tray (3). A blower (6) is installed on the outside of the housing (1). The blower (6) is connected to a main air pipe (7). The main air pipe (7) is connected to a cavity (8). A branch air pipe (9) connected to the test chamber (2) is installed in the housing (1). The air outlet of the branch air pipe (9) is located directly above the heating wire (4). The other end of the branch air pipe (9) is connected to the cavity (8). A regulating valve (10) is installed on the branch air pipe (9).
2. The heat resistance testing device for rubber materials according to claim 1, characterized in that, The box (1) is hinged with a cabinet door (11) corresponding to the testing chamber (2). The cabinet door (11) is made of transparent material and a handle (12) is installed on the outside of the cabinet door (11).
3. The heat resistance testing device for rubber materials according to claim 1, characterized in that, The box (1) has slots (13) fixed inside, located on both sides of the tray (3), and the tray (3) slides back and forth in the slots (13).
4. The heat resistance testing device for rubber materials according to claim 1, characterized in that, A temperature sensor is fixed inside the detection chamber (2).
5. The heat resistance testing device for rubber materials according to claim 1, characterized in that, A controller (14) is installed on the outside of the housing (1).