Mooney Viscometer maintenance

Mooney Viscometer is computer-controlled high degree of automation and easy operation.But the internal structure is complex, precision instrument to normal operation, prolonging life, the user must do the daily maintenance work:

1. Often to keep the instrument inside and outside clean, but does not allow use with corrosive organic solvents, gasoline, wipe the surface;

2. Good lubrication, the following provisions and fuel;
  1) Column of the cavity regularly with a soft silk stained with oil and wipe it again：（Once every two weeks）
  2) Filling the right amount of grease to the copper gear on a regular basis.: (Once every month)

3. Pneumatic FRL:Should be noted that timely water and fuel (can not be wrong.) and often pay attention to the mist atomization situation.(Generally regulate the opening and closing in each mode 2-3 times, there is a second drop of oil appear.)Every three months at the same time cleaning the filter, to prevent the electromagnetic valve plug action failure.

4. Pressure gauge every six months (or year) to test again.

5. The end of each test, the cavity tank viscose should clean up in time to prevent slipping and affect the test results.

6. Printer manual for the printer maintenance.

7. Solenoid valve every 3-6 months, can be used kerosene cleaning once dried, add a little oil in order to ensure the reliability of action (non-professional instrument work, this carefully)

8. Mooney viscometer is disabled, such as a long time to heat up once every two weeks on the instrument power, each at least 15 minutes.

9. The electrical part of the maintenance checks:
1) First check the fuse is blown.( total power: 220V/10A  1).
2) If the fuse blows, do not rush to new ones to check out the reason.
3)Check the two switching power supply output is normal, if abnormal, should be immediately shut off the main power supply.
4)Check the electrical components, wiring and other loose, fall off, short circuit, should be promptly repaired.
5)Computers, data acquisition boards, data conditioning board, etc. do not fix it. If you have any questions contact the factory.
6)Calibrated once each year on the accuracy of platinum resistance temperature (with the factory to get in touch).
7)Panel buttons in case of damage, spare parts replaced as is available to the user, can not be inserted in the wrong.

10. Note:
1)Machine If you have any questions, should be turned off to prevent the failure to expand.
2)Machine fails, it is timely self-test or notice of specialized personnel to check the repair.
3)Our products implement year warranty, the insurance period, the factory can be sent maintenance.
4)The user should be strictly in accordance with the relevant contents of this manual can not be illegal to operate.

11. Every two years to replace the trachea to anti-aging fracture.

Mooney viscometer

Mooney viscometer graph

Application of Moving Die Rheometer in Production and Scientific Research

Moving Die Rheometer is a continuous determination of rubber vulcanization process vulcanization performance of the equipment, because it has the characteristics of use small sample, test speed fast, test results with high precision,since 1960s, A wide range of vulcanization instrument have been developed, in rubber production and scientific research has been widely used. No Rotor Rheometer/Moving die rheometer has many different types, disc oscillation rheometer is the most widely used currently. In this article, the rheometer curve and rheoemter in the production and scientific research and application,do the following brief.

Application

1.Moving Die Rheometer is widely used to determine the optimum rubber vulcanization time.

The traditional method for determining the optimum vulcanization time for a compound is to use fractional step method. Selected a series of curing point vulcanized rubber, and then do stress-strain test. According to the compound strength change. Make the vulcanization curve,the properties of strength and elongation , to determine the appropriate rubber compound curing time . But measured by rheometer,Using a vulcanizer,the optimum cure time can be selected directly from the measured cure . Compared with the traditional method. With a simple, fast, accurate, less consumption, small human error and so on.

2.Production quality control with the Moving Die Rheometer.

In the production, quality of finished products affected by many links such as mixing,ingredients,etc. The quality control in production has great significance,The vulcanizer is one of the effective quality control methods in rubber industry. The usual method is to establish a defined boundary value at several points along the vulcanization curve, and each batch of the finished product is subjected to a vulcanizer test to obtain the vulcanization curve of the batch. And compare with the curve and the provisions of the boundary value, The rubber material for waste rubber if deviation outside from the curve of these boundary value,this can reduce the useless processing to achieve production quality control purposes.

3.Recipe adjustment and development.

From the vulcanization curve can be seen on the recipe for mixing when the subtle changes. The effect of formulation changes on viscosity and scorch can be measured at the beginning of the curve. From the vulcanization curve of the degree of cross-linking and vulcanization of the flat line area can be seen with the curing agent on the curing rate and modulus of the impact. In this way, technicians can use the Moving Die Rheometer adjust the formula convenient and quickly. To achieve the desired recipe and vulcanization characteristics.

4.Evaluate the properties of the raw materials, such as polymer ,filler and accelerator,etc.

In this regard, the most widely used test method is to select the optimum cure time from the vulcanization curve. For the identification of the polymers, fillers, and accelerators to be identified, only a single specimen is prepared for stress-strain testing. Stress and strain test results to determine the quality of raw materials. Using this method for raw material identification can save a lot of time.

5.Research in vulcanization kinetics.

The vulcanization curve is the most commonly used method in the study of vulcanization kinetics

for nearly forty years. Due to the essence of the vulcanization reaction is cross-linked, so you can change the degree of crosslinking to represent the reaction kinetics. usually with a typical curing curve to reach the maximum torque point means vulcanization end, after the torque change is caused by the aging process, the aging process is Crosslinking and fracture of the competition process.Different raw rubber, chemical properties and curing temperature and other factors of vulcanizing agent, will come to a different vulcanization curve.In the aging process, due to cross-linking and fracture of the competition is different, three typical cure curves are obtained.

In short, the Moving die rheometer in the production of rubber products and scientific research have played a very important role ,For the production of rubber products and scientific research, is an accurate, fast and indispensable tool.

Moving Die Rheometer

How to maintain Moving Die Rheometer?

Dongguan Right Testing Machine Co.,Ltd is manufacturer of Moving Die Rheometer,In order to ensure the normal operation of the Rotorless Rheometer, to extend the service life,Dongguan Right Testing Machine Co.,Ltd  sum up some of the maintenance and precautions to everyone, users must do following maintenance,please. 

I.Moving Die Rheometer mechanical parts
1.The inside and outside of the instrument must be kept clean. Do not use corrosive solution or gasoline to clean the instrument surface.
2.Every one or two weeks use a soft cloth with oil cleaning two guide post; every month add oil to the bearing, add lubricating oil wear section; if no use for a long time, in the upper and lower mold surface coated with lubricating oil;
3.Each time to finish the test, clean  rubber residue in the mold cavity, to keep the mold cavity cleaning
4.No Rotor Rheometer pneumatic parts should be use kerosene clean after working every 3 months.
5.Pressure gauges identified every 6 months
6.The atomized lubricator should be kept oiled and added to 2/3 height. 

II.No Rotor Rheometer electrical parts
1.If Moving Die Rheometer failure, first check whether the fuse broken, if broken, should first analysis of what causes, to find out why,then change new fuse.
2.When the fuses are intact, and then check whether the connector loosen.
3.Check whether the switching power supply meets the nominal value, that is, the output should be +5 V, +12 V, if any abnormal, immediately turn off power.
4.The repair principle of circuit board adopt replace the whole board method, the user can purchase a rotorless rheometer with separately board, the warranty period is strictly prohibited modification , or at your peril!
5.The consumable parts of the printer should be changed frequently.
6.Moving Die Rheometer must be energized once a week if long time no use ,charge time not more than 15 minutes, in order to keep the electronic components in a normal state.
7.Circuit board, testing control module users generally do not split, there should be maintenance once have problems.
8.Do not touch the integrated circuit chip on the printed circuit board to avoid electrostatic breakdown!

For more Moving Die Rheometer related questions,please call our hotline:+86 132 6746 6269 or visit http://www.dgright.com