Product Overview
The Jingke QSX-23457 puncture resistance tester is a specialized detection equipment designed according to the GB/T23457-2017 standard, used to determine the puncture resistance performance of materials such as concrete blocks. The instrument mainly consists of a base, cushion block, punch rod, graduated guide tube, weight, and controller components. It evaluates the puncture resistance by impacting the specimen with the free-falling weight.
Product Features
1. Designed in accordance with the GB/T23457-2017 standard, ensuring reliable test results.
2. Reasonable structural design, including a base, pad block, punch rod, graduated tube, heavy hammer, and precise controller components, ensuring stable operation.
3. Equipped with an adjustable positioning mark for convenient and precise setting and calibration of the drop height.
4. Utilizes mechanical controller components, releasing the heavy hammer through the linkage of a compression spring and slider, ensuring reliable action.
5. The weight of the heavy hammer and the drop height comply with standard requirements, guaranteeing the accuracy of test conditions.
Working Principle
The instrument lifts and secures the hammer at a preset height (read from the positioning scale) via the controller assembly. When the control screw is pressed, the controller spring compresses, aligning the round holes in the controller slider with those in the upper cover and lower base of the controller, thereby releasing the hook and allowing the hammer to fall freely and strike the impact rod. The impact rod transmits the force to the specimen plate below. After the impact, the hammer and impact rod are lifted, and the specimen plate is removed to observe the perforation, thereby evaluating the puncture resistance of the specimen.
Application Fields
Determination of puncture resistance of concrete blocks and impact resistance testing of waterproofing membranes and related materials.
Complies with standards
GB/T23457-2017、GB12952—2011
Operating Procedure
1. Check if the positioning mark is zeroed before use: Place the gasket and spacer block on the base, lower the hammer, and observe whether the positioning mark line aligns with the zero line on the metal guide tube. If there is a deviation, adjust the screws on both sides of the positioning mark.
2. Sample preparation: Place the specimen with the adhesive layer facing upward on a 300*300*3 mm aluminum plate, and place both on a concrete block (approximately 400*400*50 mm) embedded with a smooth stainless steel support plate (300*300*3 mm).
3. Parameter setting: Ensure the drop hammer weight is 500±1 g, adjust the hammer to the specified drop height of 1000±5 mm, and secure it with the controller screw.
4. Execute the test: Operate according to the specifications in GB 12952—2011, section 6.9, and press the control screw to release the hammer for impact.
5. Result evaluation: After the impact is completed, lift the hammer and impact rod, remove the sample plate, and observe its puncture resistance.
Precautions
• It is strictly prohibited to perform impact operations without placing a specimen.
• During long-distance transportation or storage, the instrument should be wrapped with moisture-proof materials and placed in a wooden case, with foam boards used internally for securing to prevent damage caused by jolting or pressure.
• The instrument should be stored in a dry environment and kept away from corrosive gases.
• If the controller becomes obstructed due to improper storage or use, it can be disassembled and inspected according to the instructions: first, unscrew the lock tube bolts to remove the tube body, then unscrew the controller screws and the side screws of the hammer body. Use a screwdriver to remove the positioning bracket fastening screws from the bottom of the tube, and the controller can be taken out for repair.
