1XR-14--Application and scope of high-speed mechanical stability tester

Latex mechanical testerSuitable for scientific research institutions and latex manufacturers to conduct mechanical stability tests on natural latex or synthetic latex. It is an instrument for improving the quality of latex. This product complies withIS02006Standard requirements for testing instruments.

IIXR-14--Characteristics of high-speed mechanical stability tester

The speed of the instrument is stable at14000r/minDuring operation, the range of rapid fluctuations does not exceed100r/minAnd it can be3000r/minto20000r/minAny setting. This product uses a high-speed synchronous motor with high precision, smooth operation, long service life, and low noise. The speed regulation part adopts variable frequency speed regulation, which has good performance, reliable quality, and simple and accurate operation.

IIIXR-14--Main specifications and technical parameters of high-speed mechanical stability tester

1Specification of mixing tray:

aNatural rubber latex:

Diameter:20.83±0.03mm

Thickness: 1.57±0.05mm

bSynthetic latex:

Diameter:36.12±0.03mm

thick: one point five eight±0.05mm

2Latex container: high127mmInner diameter58±0.25mmWall thickness2.5mm

3The distance between the bottom of the mixing plate and the inner surface of the bottom of the latex container13±1mm

4Speed range: can be within3000r/min—20000r/minBetween any settings (including14000r/min）.

5Working voltage:220V±10%, current5A.

6Working temperature:10-40℃.

7Working medium:PHValue in1to14Synthetic latex or natural latex between them.

8Working hours: Generally, the motor can work normally. When the motor runs for a long time, the temperature rise of a certain part of the motor reaches60At ℃, circulating water can be introduced for cooling and continued operation.

4、 Main structure and working principle

1Main structure:

The instrument consists of three parts: ⑴ Speed regulation and measurement part. ⑵ The motor drives the high-speed rotating parts of the mixing shaft and disc Base and adjustable latex container.

Speed regulation and measurement part: frequency converter, speed display.

2Working principle:

A high-speed motor with a long shaft and a stirring plate at the end of the shaft. The high-speed rotating motor drives the long shaft and the stirring plate connected to it to operate. The constant shear force of the metal disk horizontally stirs the latex and measures the content of solidified material produced after a specified time.

5、 Operation and usage

1Select the mixing plate as needed and fasten it onto the shaft.

2Place the latex container on the container holder, tighten the lock button (note: be sure to tighten the container), take the required sample according to the regulations and pour it into the latex container. Rotate the container holder knob to the highest point, which is the distance between the bottom of the mixing plate and the bottom of the latex container13±1mmHere. Place the protective cover in place to prevent the mixing shaft from colliding with the container and causing danger.

3Connect the power supply（220V）Turn on the power switch.

4Setting of speed value:

After startup, the frequency converter displays“H234.0”， “H”In flashing state, the following number is the frequency value, which should be displayed at this time234.0Left and right, if it weren't for the knob on the adjustment panel, because1Hz≈60r/mintherefore14000r/minAt the speed, the frequency is234Left and right, the speed has been set to this value at the factory.

5At this point, you can press the green "Run" button on the frequency converter panel,The high-speed motor can automatically lift to14000±200r/minAfter the motor runs smoothly, align the tachometer with the reflective paper attached to the mixing shaft and measure the speed14000±200r/minLeft or right is sufficient, if not, it can be adjusted.

6At the designated time, press the red "stop" button on the frequency converter panel to gradually stop the high-speed motor from rotating. After the motor stops, lower the container tray to the bottom. Loosen the container fastening screws and remove the container.

7Rinse the mixing shaft and mixing plate with distilled water. (Latex corrodes the long axis and disc) Then remove the latex container and measure according to relevant standards.

8After the measurement, wash the latex container clean for the next use and wipe the instrument clean.

9Turn off the power switch.

6、 Precautions for use

1The mixing shaft must be securely fastened to prevent detachment or inaccurate actual mixing speed at high speeds. Attention: The mixing shaft and glass container must be securely fastened to prevent collision between the mixing shaft and the glass container, which may cause the glass container to shatter and pose a danger. Do not disassemble high-speed motors by yourself.

2Do not use the frequency converter50HZThe following operation.

3Do not collide with the mixing shaft and mixing plate, and do not apply excessive radial force during loading and unloading.

4During the operation of the motor, the temperature rise of a certain part reaches60 At ℃, immediately introduce circulating water before continuing operation, or shut down for cooling.

5During the operation of high-speed motors, the values measured with a speedometer are compared to the experimental values（14000±200r/min）When it does not match,The knob on the adjustable frequency converter panel is used to fine tune the output frequency, ensuring that the speed of the high-speed motor is at the correct value. The parameters of the frequency converter have already been set and do not need to be changed.

7、 Installation and commissioning of instruments

1Place the instrument on a dry and vibration free platform.

2Insert all the thin ends of the selected mixing shaft into the motor locking holes and tighten them with two wrenches (note: be sure to hold tightly to prevent detachment or tilting).

3There are two circulating water nozzles on the motor of the instrument that can be freely selected be launched. We need to install a circulating water pipe.

4Remove the speed measuring paper from the speedometer,Paste onto the mixing shaft.