Fully automatic mechanical testing equipment for doors and windows

Fully automatic mechanical testing equipment for doors and windowsTechnical Indicators:

1. Large force application value: (0-500) N, indication accuracy: 0.1N, test force accuracy level 0.5;

2. Industrial touch screen computer terminal, which can be directly set for viewing on the computer and can store and print.
3. Air pressure: 0.4-0.7Mpa;
4. Measurement of maximum displacement deformation: 0-50mm, accuracy 0.01mm;

5. Repeated opening and closing device stroke: 900mm

6. Repeated opening and closing times: set arbitrarily within 100000 times, automatic shutdown.
7. Opening and closing speed of casement windows: (0-20) times/min;
8. Sliding window switch speed: 15m/min;
9. Fatigue test frequency: can be set freely within 100000 times, and automatically shut down;

10. Number of window specimens: ≤ 3 pieces;
11. The largest size of the test piece is 2500 × 2500 (mm);
12. Sample storage conditions: Place at (18-28) ℃ for at least 16 hours;
13. Dimensions: (within the scope of the equipment working site) length x width x height=3500 x 2000 x 3200mm;
14. Power supply: 220V ± 10%.

Precautions for fully automatic mechanical testing equipment for doors and windows:

（1） Airtightness testing

Firstly, for the openable gaps and embedded gaps on the sealed specimen, positive and negative pressure should be applied according to specific testing and pressurization procedures to measure the additional air permeability of the specimen; Remove the sealing measures on the specimen, follow the above pressurization procedure, test the total air permeability of the specimen, and calculate the air permeability per unit seam length and per unit area based on a standard pressure difference of 100Pa. Then convert them into air permeability per unit seam length and per unit area based on a standard pressure difference of 10Pa. Positive and negative pressures need to be calculated and graded separately. For the same specimen, based on the same standard state, there may be different levels of air permeability per unit seam length and per unit area. In actual testing, the air permeability should be classified according to the unfavorable level and positive and negative pressure.

（2） Water tightness testing

During the process of conducting water tightness testing, it is important to note that during on-site pressure testing, not only should step-by-step pressure testing be carried out, but also an additional pressure testing should be added; The water spraying time before on-site pressure testing should be controlled at five minutes, and the leakage situation of the external window should be observed. If there are water marks at the connection part within thirty minutes after the completion of one pressure test, it will be classified as severe leakage.

（3） Testing of wind pressure resistance performance

The pressure difference of repeated pressure testing is taken as 1.5 times the value, and the specimen is subjected to positive and negative repeated pressure to detect whether there is damage or functional impairment based on this condition. Grading detection uses 2.5 times P as the pressure difference for grading detection. Under the action of gust load P3, the pressure difference of the previous level corresponding to the functional impairment or damage of the specimen is used for grading detection; When the engineering design value is less than or equal to 2.5 times P, the engineering inspection is carried out. When the pressure is increased to the engineering design value and no damage or functional impairment occurs in the three orange specimens, it is judged to meet the engineering design requirements.