Suche - Rudel der Schattenmähnen

The characteristics of the torsion testing machine and the introduction of the application of the tensile machine

Torsion testing machine is used to test the torsion performance of bolts and nuts. It is mainly used to measure the locking torque, installation torque, self-locking torque and pre-tightening force of bolts and nuts. With the continuous improvement of environmental protection awareness of the Chinese people, it has low energy consumption and low noise. The electronic test equipment will become the demand trend of high-end laboratories.

1. Features of torsion testing machine and tensile machine:

1. The button rebound tester adopts a Taiwan TEDA servo drive motor, which drives the beam to move up and down through the transmission mechanism to test the loading process.

2. The entire control system has the characteristics of high cost performance and reliable performance.

3. The torsion testing machine button rebound torsion testing machine and fatigue testing machine use microcomputer to control the whole test process, and display the load value, displacement value, deformation value, test speed and test curve in time.

4. The button spring-back torsion testing machine and fatigue testing machine use microcomputer for data processing and analysis, and the results will be automatically saved. After the test is completed, the test curve can be called up again, and the curve comparison and amplification curve can be performed by repeating the test process.

5. English version of Windows test software, with data and graphics processing functions.

6. The torsion testing machine has safety functions such as limit protection, overload protection, and emergency stop.

Torsion testing machine and tension machine application: Button rebound torsion testing machine and tension machine can be widely used in wire and cable, metal, electronics, packaging and printing, medical equipment, auto parts, fiber and leather, clothing and footwear, rubber products , Universities, research laboratories, arbitration inspections, technical supervision departments, etc. Torsion testing machine and tensile machine are the basic equipment for quality management and physical performance testing.

2. Brief introduction of automatic servo torsion testing machine and tensile machine software:

A. Sample information: Provide users with all sample data, which can be reused forever and only need to be entered once. The formula can also be modified automatically to improve the test data.

B. For a report editor that is completely open to users, testers can choose the preferred report formula.

C. A dynamic exchange method is adopted between the length, force unit and display accuracy. The force unit is T, kg, N, g, lb; the length unit is millimeters, centimeters, and inches.

The D.Graph scale can be automatically scaled to display the graph at the best scale. It can also be used to switch the graphic dynamics of the test current of the torsion tester and the tensile tester. Two-point expansion and multi-curve comparison of load-displacement, load time, displacement time, stress-strain load diagram can be performed.

E. The results can be output as data using Excel formulas.

Tensile testing machine test speed

At present, some domestic equipment in 50 ~ 500 mm / min, some in 0.001 ~ 500 mm / min, the former generally use ordinary trapezoidal screw plus speed motor or frequency conversion speed control system, the cost is lower, wear and tear. Over time, the test more will produce a shaking of the center link plate, affecting the test accuracy, and time soon, the machine is noisy and easy to break; a laboratory put such a tractor-like tension machine, certainly not in a good mood, the follow-up maintenance is also a lot of overhead. So we must also think about our testers. The latter uses a servo system with ball screw, high precision, constant speed and stable speed, small wear and tear, better durability. The measured test repeatability is also good. The standards have specified test conditions, what material how much speed, because the speed is not the same measured force value is not the same. Such as all kinds of production equipment robots are used in the servo system, if you have the opportunity to go to the car factory to see, car parts in each position is no difference. Think about how relieved you can be to put such a machine into your own factory, out of the product after the test, the heart will be confident, the price will be sold accordingly, the customer is also easy to accept.

As flexible packaging materials are mainly polymer or its related materials, as mentioned before polymer materials elongation is far better than metal, fiber, wood, plate and other materials, so the detection of polymer tensile strength machine with the usual material tensile properties testing tensile strength machine has some differences, especially need to pay attention to the effective stroke of the electronic tensile strength machine and the specimen fixture two aspects. Tensile properties of plastics and rubber is one of the most important and basic mechanical properties, which largely determines the use of the plastic and rubber occasions. Tensile properties of good or bad, can be tested by tensile test machine tensile test. Tensile properties of polymers tensile test: when used as a material requires polymers to have the necessary mechanical properties. It can be said that for most applications of polymers, mechanical properties are more important than other physical properties. Polymers have the widest range of mechanical properties of any known material due to the fact that polymers are composed of long chain molecules and have significant relaxation properties in molecular motion.

For example, polymer materials have a fairly high elongation, the general PE elongation at break in 90% to 950% (including linear low density polyethylene LLDPE elongation is higher), through a special production process, the elongation of some materials can be above 1000%, while the elongation at break of ordinary polymer materials are also mostly between 50% to 100%. Usually the higher requirements for the tensile properties of the material are heat shrinkable film as well as stretch film. Tensile test machine tensile test: tensile test (stress-strain test) is generally the material specimen ends are clamped in two jigs at a certain distance apart, the two jigs to a certain rate of separation and stretching the specimen to determine the stress change on the specimen until the specimen damage. Tension machine tensile test is one of the most widely used methods to study the mechanical strength of materials, which requires the use of constant speed motion. According to the different ways of load determination, can be broadly divided into two types of pendulum type tensile testing machine and electronic tensile testing machine, currently more commonly used is the electronic tensile testing machine.


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Traditional phone systems defined

As a small to mid-sized business, you are likely approached by numerous phone providers about a variety of phone technologies. How do you cut through the clutter to select the service provider that is right for you?

A traditional phone system is also referred to as a legacy system. It runs on a physical box (“brain”) located at the company’s office, and is connected by wires to each individual phone. These premise-based devices are dependent on the number of users and the number of outside lines required to make outbound calls.

They also require multiple cards depending on the number of users and telephone lines used. Companies with multiple locations also need multiple “brain boxes”. If the company grows after the initial purchase, a Technician has to manually upgrade the hardware to add new users.

PBX is short for "private branch exchange." Businesses typically use this type of private telephone network. Once installed, employees share a certain number of lines to make outside calls. To install a PBX system, you must have the PBX console, along with a telephone cord and plug. Once you install the system, you should test it to ensure it works.

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Intense competition in the hotel industry drives hoteliers to pursue the high efficiency of communications and information management systems. Advanced and specialized communication solution not only facilitates hotel operations but also ensures high-quality guest experience and nourishes guest loyalty. Integrating IP communications is an indispensable aspect. With the IP communications system, guests can enjoy voice and video communications at a low expense while hotel staff collaboration is also enhanced.

The full scope of the hospitality solution includes powerful VoIP PBX or IP PBX as the server, TA FXS Gateway as the bridge between VoIP and hotel analog phones, open API for PMS integration, and a wide range of compatible hotel phones for the front desk, rooms, and back office.

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Wiring operation of vacuum pump unit

Only remove the cable before using the vacuum pump unit. When installing, you need to re connect the cable yourself. However, attention must be paid to the correct method when connecting cables. Otherwise, it will have a great impact on the use of vacuum pump device. Everyone serves to explain the connection method of vacuum pump device for everyone:

When the vacuum pump unit wiring, must use polyester insulation tape. When packing, be sure to press half of the first circle and wrap in 8-12 layers. After wrapping, wrap two layers of plastic tape to increase strength. When the vacuum pump unit is connected, the copper core of the cable is stripped about 30-35mm long. Wipe the copper wire with abrasive cloth and strip the copper wire. The copper wire of the external three core cable is also stripped by 30-35mm and cleaned with abrasive cloth.

Insert the wiring of the vacuum pump unit into the copper wire part of the three core cable, strip off the external cable, and then bind it with fine copper wire, cut off the remaining part, and flatten it with scissors to prevent binding hands; at the same time, the three ends of vacuum pump shall be welded separately, and the surface of welding joint shall be smooth without burr and false welding. To ensure that there is no welding or unevenness, re weld the vacuum pump until the requirements are met.

For the wiring of vacuum pump unit, the three wires must be wrapped together with plastic tape to wrap two layers. The first layer is more than 50 mm above the end of each wire insulation layer and the second layer is 50 mm beyond the end of the first layer. Take a basin of cold water and immerse the wrapped thread in water safely. After 12 hours, the insulation shall not be less than 50 megohm with 500V megger. Otherwise, it should be repackaged until the requirements are met.

The grounding wire of the vacuum pump unit must also be wrapped according to the wiring process of the submersible cable; after connecting the vacuum pump unit, the insulation resistance should be continuously measured during drilling to observe the change and prevent the cable wall from damaging the cable insulation layer. When the drop is less than 0.5 megohm, the device must be started to detect the cause.

Do you all know how to drain oil from liquid ring vacuum pump? Let's learn more today!

1. If you want to drain all the oil in the case of liquid ring vacuum pump, you can screw off the oil drain plug at the bottom of the box to drain the oil.

2. When the liquid ring vacuum pump is discharging oil, the height between the liquid level and the top plate of the oil tank shall not be more than 30mm, so as to ensure the lubrication and cooling of the bearings in the pump. When the volume of the jack working chamber is too large, another oil tank shall be set up to ensure that the minimum height of the liquid level after the external oil discharge is not less than 100 mm, so as to avoid being sucked out.

3. After the first 500 h operation of speed regulating hydraulic Siemens liquid ring vacuum pump, the oil tank and oil filter should be cleaned. The oil quality shall be tested by visual inspection and laboratory test. When the oil quality deteriorates, the oil shall be replaced in time. Oil tank and oil filter must be cleaned at the same time when changing oil. If there are metal chips or water in the oil, find out the cause and remove the fault.

4. In a short period of time when the liquid level drops, the bearing is lubricated by attached oil and splashing oil from plunger spring. The oil filter of oil tank and oil filter under pump are made of 230 mesh / inch copper mesh. The oil filter net should be cleaned frequently to prevent blockage. When in use, the oil temperature of oil tank should not exceed 60 ℃, and appropriate measures should be taken to cool it if necessary.

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Cleaning method of dust in vacuum negative pressure station

Vacuum negative pressure station is mainly used in chemical, petrochemical, light industry, pharmaceutical, papermaking, metallurgy and other occupations. Because of the particularity of the working environment, vacuum negative pressure station is easy to scale, which makes many companies helpless.

In addition to preventing scaling of vacuum negative pressure station, cleaning is required for vacuum negative pressure station with severe circumstances. Detailed operation methods are as follows:

1. In case of severe scaling, it is necessary to dismantle and remove the scale. The key point is to remove the scale on the impeller and distribution plate (or distributor). Pay attention to adjust the axial clearance when assembling from the beginning.

2. If you don't want to dismantle the vacuum negative pressure station, you can use oxalic acid solution or hydrochloric acid to soak in the pump, and then wash the pump body with clean water after soaking. Pay attention to the concentration and soaking time when using hydrochloric acid to avoid damaging the pump body.

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