Babbitt metal, fusible alloy, low melting point alloy

Production of Babbitt metal, bearing alloys, Babbitt bearing shells, support pads, bushings, and liners. We sincerely look forward to collaborating with you to achieve brilliance together. Below, I will briefly discuss some relevant knowledge about the pouring of Babbitt bearing shells for our consumers: 1. Cleaning of alloy bearing shells: Place the bearing shells in a 10%-15% cleaning solution 1 to remove rust, then place them in hot water at 80 degrees Celsius to remove remaining dirt. After washing, place the bearing shells in hot water at 70 degrees Celsius to rinse off any remaining impurities. After cleaning, avoid touching the inner surface of the bearing shells with your hands. Sometimes, due to prolonged storage after removing old alloy, an oxide layer may form on the surface. Before tinning, perform a 3-minute weak corrosion in cleaning solution 1, then immediately immerse in cleaning solution 2 for 2 minutes to neutralize, followed by rinsing with hot water. 2. The adhesion of tin to the bearing shell is better than that of Babbitt metal. Tinning helps the Babbitt metal adhere more firmly. The tinning material used is tin or tin alloy, along with a flux. The flux removes surface oxides and grease, ensuring a strong bond. Tinning methods include the wiping method and the dipping method. 3. Removing contaminants: Use a blowtorch flame or heating furnace to heat the back of the bearing shell to remove old Babbitt metal. Carefully clean the melted Babbitt metal from the bearing shell with a wire brush, removing dirt, rust, and traces of Babbitt metal. Pay special attention to cleaning the oil grooves and dovetail slots. After cleaning, tinning is applied as a base layer before pouring the Babbitt alloy solution...



Low-melting-point alloys refer to fusible alloys with a melting point below 232°C (the melting point of Sn); they are typically composed of low-melting-point metal elements such as Bi, Sn, Pb, and Cd. Low-melting-point alloys are widely used as solders, as well as thermal-sensitive components like fuses and fusible links in electrical, steam, fire protection, and fire alarm systems. They represent a class of new materials with significant development potential.

Low-melting-point tin-bismuth mold alloys are used to manufacture cold stamping dies for thin sheets, capable of pressing copper, aluminum, steel, stainless steel, and other sheet metals, with steel sheet thickness up to a certain limit. They are used for stretching, bending, and forming thin sheets. Using low-melting-point alloy molds eliminates the need for mold steel, simplifies and speeds up mold formation; mold costs are low, and updates are fast; molds require no adjustment or machining; after use, molds can be remelted, and the alloy can be reused repeatedly; due to rapid mold formation, storage space for molds can be significantly reduced.

Low-melting-point tin-bismuth alloy molds are made using low-melting-point non-ferrous metal alloys as casting materials, with the sample part as a reference, cast and formed in a melting box. In the late 20th century, low-melting-point tin-bismuth alloy molds found applications, particularly in the field of deep-drawing molds for automotive body panels, where their advantages are even more pronounced.

Characteristics of low-melting-point tin-bismuth alloys: Stamping molds feature the simultaneous formation of punch and die through casting; after casting, the clearance between the punch and die is uniform, requiring no adjustment during use; molds can be cast directly on a press machine and used immediately after casting; the casting alloy material can be remelted repeatedly or repurposed for other molds. It is anticipated that with economic development, tin-bismuth alloys will see even broader application prospects.