Check the main design dimensions according to the figure: R-07
Icon code
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
I
|
J
|
W
|
Design size
|
15.90
|
27.60
|
1.75
|
21.50
|
18.00
|
1.00
|
37.30
|
29.20
|
1.50
|
2.00
|
1.00
|
tolerance
|
Minimum value
|
Minimum value
|
Minimum value
|
Reference
|
Reference
|
|
The maximum value
|
±0.30
|
|
|
reference
|
● Detection tool: digital caliper or micrometer.
● Indicate the code for inspection.
● The number of outlet slots is 4 × 2.
● hole A is not roundness ≤ 0.20mm, both sides of the hobbing plane of the parallelism ≤ 0.20mm, no significant warping.
● hole hole anastomosis is not allowed to have a step, feel smooth and unimpeded.
● no residual shape or damage, color is no different normal
● finish up to ▽ 7 or more, but allow for harmless scars and miniatures.
● Metal-free impurities or other debris, containing metal, debris products, must be waste separation.
● no melting marks, no internal pores bright spot. There are stomatal highlights (excluding melting marks) products for foreign goods.
● no flash, burr and excess material. Key parts of the burr ≤ 0.05 mm.
● anti-pressure ≥ 25 kg / square centimeter, no damage.
● feel a strong elasticity, and not brittle.
● hardness, wear resistance are suitable for high-speed heavy-duty rotation.
● Selection of raw materials must meet the requirements of the EU ROHS directive, and has UL yellow card certification and fixed-point supply.
● heat distortion temperature ≥ 120 degrees Celsius, insulation resistance must be ≥ 1000M ohm, flame retardant UL94Vo level / 0.8-3.2mm.
● High voltage test 4KV (AC, DC) / 1 minute without breakdown. (Tester for the Changzhou Instrument Factory CY2674A type.)
● other structures should meet the transformer manufacturing process as the standard.