Impact bending testing machine

overview:

471The bending and impact testing machine is used to measure the flexibility and impact resistance of coatings on light metal sheets or support tubes. Test simulated impacts, pressing out flanges, bending, and similar operations.

The bending and impact testing machine consists of two vertical guide rods with a2300（±100g）The impact tool descends to a height of650mm±5mmA specially designed platform for placing test samples. There is also a Φ for bending coating samples on the substrate5mmCircular axis.

Testing principle:

A curved coated metal sheet is subjected to an impact force, causing the cylindrical hinge on the template to be squeezed into a conical shape. The test can determine the degree of bending when the coating ruptures.

Test program:

Coated metal sample（50×140mm）Bent on the axis180The coating is facing outward, and the impact tool is placed at the top between the fixed needles. Place the template on the platform, with one side in contact with the positioning plate, and then lower the impact tool.

assessment:

100can Copper sulfate（Cu SO₄.5H₂O）

50can citric acid

0.5mg Sulfuric acid (concentrated) proportion1.84）

These three chemicals dissolve in1Add distilled water and immerse the sample into the solution5Minutes and then rinse with water. Any coating defects will be visible to the naked eye in the form of lines or corrosion points.

Test results:

Measure the length of the corrosion line in millimeters from the small point attached to the bend point (the largest bend). The shorter the line, the better the quality of coating formation.

Technical parameters:

Sample size:50×140mm

Template thickness:0.1－0.35mm

Size:250×170×850mm(Length x Width x Height)

Weight:18kg

Ordering information:

Order number:0003.01.31

Content:471Type impact bending testing machine (including circular shaft for bending samples)