FSY-11ACement sand abrasion resistance testing machine

Mainly used for the wear resistance test of cement mortar specimens, the concrete wear resistance machine can be used for both mortar and concrete tests. The product complies with JC/T421Standard requirements.

2、 Main technical parameters:

1Applicable test piece: 150×150×（30~45）mm/150mm

2Spindle loading force: 0.20KN，0.30KN，0.40KN

3Horizontal turntable speed: 17.5±48νpmSpeed ratio between spindle and horizontal turntable: 35∶1

4Power supply, power: 380V、50Hz、1.2kwVacuum cleaner power: 1.1kw

5Net weight: ≈ 200kg

3、 Structural principle:

The cement mortar wear resistance testing machine consists of three parts: the main unit, the vacuum cleaner, and the electrical control box.

1The host is the working part of the wear-resistant machine, and the movement of the horizontal turntable and spindle is powered by an electric motor. The output end of the motor is driven by two transmission chains to rotate the horizontal turntable and the main shaft respectively, and the transmission ratio between the main shaft and the horizontal turntable is 35：1.

2The pressure head load is composed of the weight of the spindle (including the grinding head) and the weight of the weights added together. When the pressure head load is 200NWhen is the weight of the spindle, the pressure head load is 300NWhen adding a weight to the weight holder, the pressure head load is 4OONWhen adding weights, add two weights to the seat (note: regardless of whether weights are added, the bolts, nuts, and washers on the weight seat should be retained, otherwise it will affect the pressure head load).

3The lifting stroke of the spindle is determined by the lift of the flat cam. When the handle is turned counterclockwise, the spindle descends, and vice versa.

4The horizontal turntable is equipped with a clamp that can clamp the specimen. The clamp consists of four clamps, two fixed and two adjustable. The adjustable clamp can be tightened with a socket wrench to move and clamp or loosen the specimen. When the product leaves the factory, the assembled fixtures are used for concrete wear resistance testing. If the user conducts cement mortar wear resistance testing, they must replace the fixtures used for mortar wear resistance testing.

5The function of a vacuum cleaner is to suck away the dust that is ground during operation at any time. sixThe electrical control box is used to control the power supply and the actual rotation speed of the horizontal turntable. It is equipped with a power supply voltage monitoring meter, 0-999The sub digital automatic control device and automatic parking device, and the number of rotations of the horizontal turntable can be pre-set. After turning on, the cam under the horizontal turntable presses the lower finger *. With each rotation, the signal is received by the proximity switch and sent to the control box. When the horizontal turntable reaches the set speed, it will automatically stop.

4Operating procedures for cement mortar abrasion resistance testing machine

1、Take the specimen that has been dried and place it on the horizontal turntable of the wear tester with the scraping surface facing downwards to make positioning marks, and gently tighten it with a fixture. Continuing at 200NPre grinding under load 30Turn, remove the specimen, clean the powder particles, and weigh it. This weight is used as the original weight g1 of the specimenThen place the test piece back to its original position on the horizontal turntable, flatten and secure it tightly (be careful not to leave any particles between the test piece and the turntable to avoid affecting the contact between the test piece and the grinding head), and grind it again for 40 minutesTurn, remove the specimen, clean the powder particles, and weigh g2The entire wear process should aim the vacuum cleaner at the worn surface of the specimen, so that the dust under wear can be promptly sucked away from the worn surface.

2、Note: Pre grinding is to improve the contact between the specimen and the grinding head and remove the surface slurry, so the number of pre grinding devices can be changed based on the strength of the specimen and the flatness of the surface.

3、The flower wheel grinding head rotates in the opposite direction to the horizontal turntable, and the grinding head grinds along a circular trajectory on the surface of the specimen, creating an inner diameter of approximately 30mm on the surface of the specimenThe outer diameter is approximately 130mmThe annular wear surface.

4、When the weight loss of the flower wheel wear is 0.5gAt that time, the flower wheels of the same group should be swapped inside and outside, and then worn down by 0.5gIt should be eliminated at that time.