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slots furnished in sizes from 1.900" to 20" od. our slot size capabilities range from 0.012” to .500” and ¼” – ½” round holes. all of our machines use a continuous flow of biodegradable coolants to maintain the pipe’s metallurgical integrity.
bestar can slot or round hole perforate a wide range of materials, such as carbon grades, alloys, stainless steel, and chrome. we are capable of creating complete turnkey packages as easily as we can slot or perforate customer-owned materials.
there are three common types of the anti-corrosion steel pipes structure in the picture performance indexes of single-layer anti-corrosion pipenoitemperformance index1adhesion 22cathodic disbonding(65℃，48h). mm 83cathodic disbonding(65℃，30d) /mm 154bending resistance(-20℃, 2.5)no cracksthe coating
there are three common types of the anti-corrosion steel pipes structure in the picture
performance indexes of single-layer anti-corrosion pipe
|
no |
item |
performance index |
|
1 |
adhesion |
≤ 2 |
|
2 |
cathodic disbonding(65℃，48h). mm |
≤ 8 |
|
3 |
cathodic disbonding(65℃，30d) /mm |
≤ 15 |
|
4 |
bending resistance(-20℃, 2.5°) |
no cracks |
|
the coating thickness of the laboratory sprayed specimen should be 300μm~400μm. |
||
performance indexes of double-layer anti-corrosion pipe
|
no |
item |
performance index |
testing method |
|
1 |
softening point. ℃ |
90 |
gb/t 4507 |
|
2 |
evaporation loss(160℃). % |
≤ 1.0 |
gb/t 11967 |
|
3 |
shearing strength(pe/steel). mpa |
≥ 1.0 |
gb 7124 |
|
4 |
peel strength(pe/steel). n/cm |
≥ 35 |
gb 2792 |
|
(20±5℃) |
|||
performance indexes of triple-layer anti-corrosion pipe
|
no |
item |
performance index |
testing method |
|
1 |
density, g/cm |
0.92-0.95 |
gb 4472 |
|
2 |
flowing rate, g/10min(190℃=2.16kg) |
≥0.7 |
gb 3682 |
|
3 |
vicat softening point, ℃ |
≥90 |
gb 1633 |
|
4 |
embrittlement temperature, ℃ |
≤ -50 |
gb 5470 |
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