When purchasing titanium bars, it is crucial to ensure that you buy high-quality titanium bars. However, how to accurately distinguish the quality of titanium bars is a process that requires professional knowledge and careful observation. Below, we will look at it from multiple aspects and angles.
How to distinguish the quality of titanium bars?
1. Observe the surface condition
Pockmarking: The surface of fake titanium bars often has pitting, which is due to the irregular surface of the titanium material caused by severe wear of the rolling groove. Therefore, when purchasing, pay special attention to whether the surface is flat and smooth.
Scratches: Fake titanium bars are prone to scratches during production and transportation, which is often caused by simple equipment or improper operation. Deep scratches will reduce the strength of titanium and affect the use effect.
2. Check the cross section and ribs
The horizontal ribs are thin and low: The horizontal ribs of fake titanium bars are usually thin and low, and often appear to be incomplete. This is because the manufacturer pursues negative tolerances and the amount of pressure reduction in the first few passes during rolling is too large.
Folding problem: Folding is a kind of broken line defect formed on the surface of titanium rods, which runs through the entire longitudinal direction of the product. Due to the pursuit of high efficiency and large reduction, inferior titanium rods are prone to ears and folds during the next rolling. Folded products are prone to cracking after bending, which seriously affects the strength.
3. Pay attention to color and gloss
Color and gloss: High-quality titanium rods should have a metallic luster, while inferior titanium rods may appear light red or similar to pig iron. This is usually due to uneven raw materials, many impurities or irregular rolling temperatures.
4. Observe surface defects
Scarring phenomenon: The surface of inferior titanium rods is prone to scarring. This is because there are many impurities in the raw materials or the equipment is simple, causing impurities to adhere to the rollers and produce scarring. Scarring will affect the appearance and performance of titanium rods.
Crack problem: Cracks may also appear on the surface of inferior titanium rods, which is mainly due to the fact that the raw materials are adobe and have many pores. Cracks are easily generated under the action of thermal stress during the cooling process, and cracks are formed after rolling.
5. Check the size and shape
Cross-sectional shape: The cross-section of a fake titanium rod may be oval instead of a standard round or square. This is because the manufacturer uses a larger reduction in the second pass before the finished product roll to save materials. This shape of titanium rod not only affects the appearance but also reduces the strength.
When purchasing titanium rods, carefully observe its surface condition, check the cross-section and ribs, pay attention to the color and gloss, and observe surface defects. Only by fully understanding and mastering these identification skills can you ensure that you buy high-quality titanium rod products.
