Surface roughness contrast measurement combination experimental device

Surface roughness contrast measurement combination experimental device,Air Treatment System Tr--ning Desk

The tolerance coordination and technical measurement are very important for mechanical majors-a technical basic course, skill class and application courses. It is an important technical requirement on the design drawing of mechanical parts, and it is also an important part of the static and dynamic geometric accuracy of mechanical products. With the development of science and technology and the improvement of production level, the geometric accuracy of mechanical products has also made increasing requirements. The geometric accuracy has formed an independent technical discipline, and it is subject to the academic and engineering and technical circles. The people attach great importance to it.

This series of devices take the actual requirements of design engineers for the actual requirements of accuracy design, and on the premise of actual teaching situation and teaching object conditions, carefully. A set of teaching products that combine theoretical and practical. It is suitable for parts of ordinary high schools, employee middle schools, vocational middle schools, vocational schools and undergraduate colleges.

Tr--ning item

Tr--ning 1: Comparison detection of the surface roughness of the outer round car

Tr--ning 2: Comparison detection of end surface milling surface roughness

Tr--ning 3: Comparison of planing surface roughness comparison detection

Tr--ning 4: Plane grinding surface roughness comparison detection

basic configuration

Tr--ning box:

The box body adopts high -quality aluminum alloy profile, which has a strong structure and a beautiful appearance. The lining is an open mold molding material, which can effectively protect the product from damage. The shape size: 400* 320* 100mm;

Surface roughness contrast measurement combination experimental device,Air Treatment System Tr--ning Desk

I. Overview

The system experimental device of the constant temperature and humidity unit is used to use the DC --r treatment system, and it is equipped with real parts such as compressor, --r -cooled condenser, evaporator, humidifier, electric heating device, and --r duct. parameter. Through experiments on this device, students can be familiar with the --r treatment process of DC systems and get basic tr--ning in thermal measurement and calculation. This device is suitable for experimental teaching such as "Refrigeration and Air Conditioning Principles and Applications", "Refrigeration and Air Conditioning Technology", and "Building Electrical Control Technology".

2. Device characteristics

1. Safety protection is complete: equipped with voltage leakage protection, current leakage protection, overcurrent protection, overload protection, grounding protection, can be effectively protected on personal and equipment

2. Good intuition: The device visually shows the structure of the --r adjustment system of the constant temperature and humidity unit. The --rway uses an organic glass panel. You can clearly see the composition of the --r circulation system

3. The constant temperature and humidity --r conditioner adopts a large --r volume, low -ending --r supply method to m--nt--n smaller temperature and humidity constant. And ordinary household --r -conditioning --r supply is comfortable. The general constant temperature and humidity --r -conditioning --r supply volume is 2 to 3 times the amount of --r -conditioning for ordinary household --r conditioners.

4. Due to the rapid changes in humidity, the unit needs to frequently dehumidify, and the constant temperature and humidity --r conditioner uses a cooling and dehumidification method. Therefore, the --r -conditioning refrigeration system is required to start frequently, and the requirements for the refrigeration system are very high. The machine was stopped for three minutes.

5. The inkjet of the experimental table has a refrigeration flowchart in the constant humidity unit,

6. The method of using the second use: 1. Manual stream, 2. The capacity of capillary

7. Choose an electronic expansion valve to save the way

8. Monitoring voltage, current, frequency, power, power factor, pressure, traffic, etc., can be displayed on the PC in real time, and can be printed.

9. The m--n electrical electricity of the --r conditioner can be manually connected. It has good hands -on. The connection line adopts a dedicated D4 connection line.