Vacuum measurement using PKR251 vacuum gauge and vacuum gauge with a measuring range of 1×102. Optimized design of the vacuum chamber structure and the finite element analysis table of the bench mounting reference table is the reference platform for mounting the etched specimen, and is the specimen scanning ion beam. The carrier for continuous dynamic etching, which is mounted on two rolling guides. The scanning motion is based on a servo motor installed outside the vacuum chamber as a power source, and the step size is refined by 1:30 planetary reducer and then two pairs of 1:2 The spiral bevel gear transmission shaft of 1 passes through the magnetic fluid sealed bearing and transmits the motion to the screw-nut pair (precision screw rod) in the vacuum chamber, thereby driving the workbench carrying the test piece to reciprocate along the guide rail. Due to the requirements of the engraved grating, Table 1 shows the main technical parameters of the table.
It is not easy to achieve such accuracy with frequent movements in a vacuum environment. Correctly positioning the mounting guides for precision components such as table guide guides and moving screw rods is a very important factor to meet the above requirements. The problem with square vacuum chambers is that each side wall must carry more than 10 tons of vacuum force. Even with reasonable ribs, the deformation of the vacuum chamber is still unavoidable. Therefore, if the guide rail is directly placed on the bottom wall of the vacuum chamber, deformation of the vacuum chamber causes the guide rail to bend, which will cause the table to lose its flexibility and uniformity of movement and even become stuck. To this end, we have optimized the design of the vacuum chamber structure, through the finite element analysis of its force deformation, and rational arrangement of ribs, first control the maximum deformation of its bottom wall at about 1mm, and then take the structure Compensation measures to make it meet the accuracy requirements. Mixed-type vacuum chamber model. The vacuum chamber model ANSYS divides the grid by two methods: free partitioning and mapping partitioning. Since our model does not have a regular topology shape, it uses free meshing, which is automatically generated by the software after a given element type and unit edge length. Grids and cells. The vacuum chamber material is stainless steel (1Cr18Ni9Ti). The load is the atmospheric pressure of the four outer surfaces. The four models are calculated respectively, and the deformation of the bottom wall of each model, the specific parameters and the calculation results are obtained.
Roof Sheet Roll Forming Machine
Roof sheet roll forming machines/Roof sheet forming machine are widely used for building, include Corrugated Roof Sheet Roll Forming Machine,IBR roof sheet roll forming machine, glazed tile roof sheet roll forming machine, Ridge Cap Tile Roll Forming Machine and Double Layer Roll Forming Machine.
These machines are high quality, save power heavy duty and low cost, which are easy to operate.
Specification:
Raw material
GI, PPGI, Aluminum coils
Material thickness range
0.3-0.8mm
Feeding width
1000mm, 1200mm, 1220mm, 1250mm
Forming speed
25-30m/min(excluding cutting time)
Rollers
18 rows
Material of rollers
45# steel with chromed
Shaft diameter and material
70mm, material is 40Cr
Material of cutting blade
Cr12 mould steel with quenched reatment
Control system
Mitsubishi/Siemens PLC control system with transducer inside
Main motor power
3KW
Hydraulic station power
3KW
Voltage
As your request
Ps:The above are for reference, we design machines according to your needs.
Working process:
Decoiler- Feeding width- Roll forming machine- PLC control- Hydraulic cutting- Collecting platform
Pictures for machine:
Training and Installation :
1. We offer installation service local in paid, reasonable charge.
2. QT test is welcome and professional.
3. manual and using guide is optional if no visiting and no installation.
Certification and after service:
1. Match the technology standard, ISO producing certification
2. CE certification
3. 12 months warranty since the delivery. Board.
Our advantages:
1. Short delivery period.
2. Effective communication
3. Interface customized.
Roof Sheet Roll Forming Machine,Corrugated Roof Sheet Machine,Roof Tile Making Machine,Wave Panel Roll Forming Machine
YingYee Machinery and Technology Service Co.,Ltd , https://www.yingyee.cn