The reason why ultrasonic molds are easy to crack is mainly caused by two major aspects: mold design and material selection, and learn the knowledge of ultrasonic welding together.
First: The design of the ultrasonic mold is not reasonable enough, and the production is not precise enough. The optimal frequency is not reached when the frequency is trimmed. Therefore, the ultrasonic energy is not completely released during use, but most of it stays in the ultrasonic mold. Over time, the mold will have weak welding in use. , Mold heating and then later is the mold cracks. To solve this problem, you must first choose a more professional ultrasonic welding machine manufacturer to make ultrasonic molds. Experience absolutely accounts for more than half of the success or failure, and then whether the master is in accordance with the design when making To make, whether there are multiple trimming frequencies to make the mold reach the best condition.
Second: In the selection of materials for ultrasonic molds, the most common three materials, steel, magnesium-aluminum alloy, and titanium alloy, are used for ultrasonic mold making. There are big differences in magnesium-aluminum alloy. Generally, imported ones are used for production. 7075 aluminum alloy, wear resistance, corrosion resistance, good mechanical properties, slightly higher hardness than other aluminum alloys, is the best choice for ultrasonic molds, and relatively high in price, generally used in aircraft structural parts. Secondly, 6061 has a low density and good corrosion resistance. It has good comprehensive mechanical properties and cutability at room temperature. Steel molds and titanium alloy molds are more simple to make molds because they are harder and easier to cut, so they are generally used to make flat molds. Titanium alloys have the highest service life of these three materials, almost There will be no cracks, and the price is the most expensive of the three.
Contact Person: Ms. Hogo Lv