Thermal sag test equipment

Abstract

The utility model discloses thermal sag testing equipment, and particularly relates to the technical field of thermal sag testing, the thermal sag testing equipment comprises a base, a fixing assembly is arranged on one side of the top end of the base and used for fixing a sample strip for thermal sag testing, and a detection assembly is arranged on the other side of the top end of the base and used for comparing the sag lowest point of the sample strip. The detection assembly comprises a steel ruler, the rear end of the steel ruler is connected with a first rail, a transverse rod is arranged on the side, away from the fixing assembly, of the first rail in a sliding mode, and the first rail and the bottom end of the steel ruler are installed at the top end of the base through an adjusting assembly and used for adjusting the distance between the transverse rod and the sample strip. The transverse rod capable of moving up and down is arranged on the steel ruler, the transverse rod is perpendicular to the steel ruler and can be used for comparing the lowest drooping point of the sample strip, the measured value of the steel ruler can be conveniently observed, the test accuracy is improved, the adjusting assembly is arranged to move the steel ruler, and the distance between the steel ruler and the sample strip can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hot sag test, more specifically to a kind of hot sag test equipment. BACKGROUND

[0002] Hot sag test is mainly used to evaluate the deformation resistance of materials (such as plastics, metals, composites, etc.) in high temperature environment. When the material is heated, its internal structure may change due to temperature, causing the material to sag and deform. This test can help determine the stability of the material under certain temperature conditions, which is very important for quality control and performance evaluation of many industrial applications, such as automobile parts, electronic device housings, building materials, etc.

[0003] The existing hot sag test equipment is generally an oven, which heats the air in the oven to a set temperature by heating elements (such as resistance wires). The test sample (such as plastic pipe or plate) is placed on a support inside the oven. Under the continuous high temperature environment, the sagging of the sample over time is observed. After a certain period of time (such as 24 hours), the distance of the midpoint of the pipe from the ground is measured to determine the thermal stability of the pipe. For example, the prior art with publication number CN108152320A discloses a sample fixing and data acquisition device, which includes a test sample preparation device, a heating device, a sample fixing and data acquisition device, and a final sample testing device. The sample strip is tested for hot sagging by a vertical scale and a heating device.

[0004] However, the existing hot deformation and Vicat test equipment relies heavily on heat-conducting oil and weighing size, which can cause large measurement errors of the actual HDT of the material, and cannot well evaluate the small differences, which often affect the most fundamental factors of the material. It is not convenient to observe the measurement value of the steel ruler, and visual errors can occur, which can affect the accuracy of the hot sag test of the sample strip. Therefore, the utility model provides a hot sag test equipment with convenient observation of numerical value and high test accuracy. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hot sag test equipment, which sets a movable crossbar on the steel ruler, and the crossbar is perpendicular to the steel ruler, which can be used to compare the lowest point of the sample strip, and the measurement value of the steel ruler is easy to observe, the test accuracy is improved, and the adjusting assembly is set to move the steel ruler, which is convenient for adjusting the distance between the steel ruler and the sample strip, to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a hot sag test equipment, including the base, one side of base top is equipped with fixed component, is used for fixing sample strip to carry out hot sag test, the other side of base top is equipped with detection component, is used for comparing sample strip's sag lowest point, detection component includes steel ruler, the rear end of steel ruler is connected with track no.

[0007] In a preferred embodiment, the fixed component includes a support, the support is internally fixed with a track no.

[0008] In a preferred embodiment, the detection component further includes a sliding block slidingly arranged in the track no.

[0009] In a preferred embodiment, the base top is provided with a sliding groove, and the adjusting component includes a screw rod rotationally arranged in the sliding groove.

[0010] In a preferred embodiment, the two clamps near the track no.

[0011] In a preferred embodiment, the base top is detachably provided with a windowed oven.

[0012] The utility model discloses a technical effect and advantage:

[0013] 1, the utility model discloses a movable horizontal rod on the steel ruler, and the horizontal rod is perpendicular to the steel ruler, can be used for comparing sample strip's sag lowest point, and the steel ruler measurement value is observed conveniently, improves the test accuracy, and sets up the adjusting component and moves the steel ruler, and the interval between the steel ruler and sample strip is adjusted conveniently.

[0014] 2, the horizontal rod is fixed on the two clamping plates on the sliding block, so that the horizontal rod can be driven to move up and down stably, and one of the clamping plates on the sliding block is disassembled, so that the horizontal rod can be conveniently replaced, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a base, fixed assembly, detection assembly and adjusting assembly structure view of the utility model;

[0017] Figure 3 It is Figure 2 the front view;

[0018] Figure 4 It is a detection assembly structure schematic view of the utility model;

[0019] Figure 5 It is a fixed assembly structure schematic view of the utility model.

[0020] The figure mark is: 1, base; 2, fixed assembly; 3, detection assembly; 4, adjusting assembly; 5, sliding groove; 6, fastening bolt; 7, take window oven; 8, sample strip;

[0021] 201, support; 202, track two; 203, crossbeam; 204, double nut screw;

[0022] 301, steel ruler; 302, track one; 303, horizontal rod; 304, sliding block; 305, clamping plate;

[0023] 401, screw rod; 402, nut block. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0025] Refer to the drawings in the specification Figures 1-5The utility model provides a kind of hot sag test equipment, including base 1, the base 1 top one side is equipped with fixed assembly 2, for fixed sample strip 8 to carry out hot sag test, specifically, the fixed assembly 2 includes support 201, track two 202 is fixedly arranged in the support 201, two beams 203 for fixing sample strip 8 are slidably arranged in track two 202, sample strip 8 and beam 203 are detachably connected together by double nut screw 204, sample strip 8 and beam 203 are fixed using double nut screw 204, greatly improve the connection firmness of sample strip 8;

[0026] The other side of the top of the base 1 is provided with a detection assembly 3 for comparing the sag lowest point of the sample strip 8, the detection assembly 3 includes a steel ruler 301, the steel ruler 301 is connected with a track one 302 at the rear end, the track one 302 is slidably provided with a cross bar 303 away from the fixed assembly 2 on one side;

[0027] Furthermore, the track one 302 and the bottom end of the steel ruler 301 are installed at the top end of the base 1 through an adjusting assembly 4 for adjusting the distance between the cross bar 303 and the sample strip 8, specifically, a sliding groove 5 is formed at the top end of the base 1, the adjusting assembly 4 includes a lead screw 401 rotatably arranged in the sliding groove 5, a nut block 402 is threadedly connected to the lead screw 401, the top end of the nut block 402 is fixedly connected with the bottom end of the steel ruler 301 and the bottom end of the track one 302;

[0028] The top end of the base 1 is detachably provided with a windowed oven 7, the windowed oven 7 is sleeved outside the fixed assembly 2 and the detection assembly 3 for heating the sample strip 8.

[0029] In actual use, the staff first installs a plurality of sample strips 8 between the two beams 203, then rotates the lead screw 401 to drive the nut block 402 to move in the sliding groove 5, uses the nut block 402 to drive the steel ruler 301 and the track one 302 to move at the top end of the base 1 and approach the sample strip 8 direction, to adjust the distance between the steel ruler 301 and the cross bar 303 and the sample strip 8, after using the windowed oven 7 to heat the sample strip 8, the sag lowest point of the sample strip 8 is compared by pushing the cross bar 303 to move up and down, and the value on the steel ruler 301 is checked, and the hot sag test value of the sample strip 8 can be obtained.

[0030] In the embodiment, the cross bar 303 is movably arranged on the steel ruler 301, the cross bar 303 is perpendicular to the steel ruler 301, which can be used to compare the sag lowest point of the sample strip 8, and the steel ruler 301 is moved by the adjusting assembly 4, so that the distance between the steel ruler 301 and the sample strip 8 is adjusted conveniently.

[0031] Refer to the attached drawings in the specification Figures 1-5The detection assembly 3 further comprises a sliding block 304 slidingly arranged in the track one 302, two upper and lower clamping plates 305 are detachably arranged on one side of the sliding block 304, the cross bar 303 is clamped between the two clamping plates 305, and the cross bar 303 is used for supporting the up and down movement of the cross bar 303, the cross bar 303 is fixed through the two clamping plates 305 on the sliding block 304, so that the cross bar 303 can be stably moved up and down, and one of the clamping plates 305 is detached from the sliding block 304, so that the cross bar 303 can be conveniently replaced, and the maintenance efficiency is improved.

[0032] The two clamping plates 305 are close to one side of the track one 302, and the two cross beams 203 are close to one side of the track two 202, and the fastening bolts 6 are threadedly connected, the ends of the plurality of fastening bolts 6 are fixed with the outer walls of the track one 302 and the track two 202 respectively, the clamping plates 305 can be separated from the track one 302 by loosening and tightening the fastening bolts 6, and the height of the cross bar 303 can be quickly adjusted by the staff.

[0033] Finally: the above only for the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A thermal sag testing device, comprising a base (1), characterized in that: The base (1) has a fixing component (2) on one side of its top end for fixing the sample strip (8) for thermal sag testing. The base (1) has a detection component (3) on the other side of its top end for comparing the lowest point of sag of the sample strip (8). The detection component (3) includes a steel ruler (301), the rear end of which is connected to a track (302), and a crossbar (303) is slidably provided on the side of the track (302) away from the fixing component (2); The bottom ends of the track (302) and the steel ruler (301) are mounted on the top of the base (1) via the adjustment assembly (4) to adjust the distance between the crossbar (303) and the sample strip (8).

2. The thermal sag testing device according to claim 1, characterized in that: The fixing component (2) includes a bracket (201), inside which a second track (202) is fixedly provided. Two crossbeams (203) for fixing the sample strip (8) are slidably provided in the second track (202). The sample strip (8) and the crossbeams (203) are detachably connected together by double nut screws (204).

3. The thermal sag testing device according to claim 2, characterized in that: The detection component (3) also includes a slider (304) that is slidably disposed in the track (302). The slider (304) has two vertically distributed clamps (305) detachably installed on the side near the crossbar (303). The crossbar (303) is engaged between the two clamps (305) to support the crossbar (303) to move up and down.

4. The thermal sag testing device according to claim 1, characterized in that: The base (1) has a sliding groove (5) at its top. The adjustment component (4) includes a lead screw (401) that is rotatably disposed in the sliding groove (5). A nut block (402) is threadedly connected to the lead screw (401). The top of the nut block (402) is fixedly connected to the bottom of the steel ruler (301) and the bottom of the track (302).

5. The thermal sag testing device according to claim 3, characterized in that: Two clamps (305) are threaded with fastening bolts (6) on the side of track one (302) and two crossbeams (203) are threaded with fastening bolts (6) on the side of track two (202). One end of each fastening bolt (6) is fixed to the outer wall of track one (302) and the outer wall of track two (202) respectively.

6. The thermal sag testing device according to claim 1, characterized in that: The top of the base (1) is detachably equipped with an oven (7) with a viewing window, which is fitted over the outside of the fixing component (2) and the detection component (3) for heating the sample strip (8).

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