Search results for keyword: rp
sand binder
Epoxy resin adhesive is a kind of thermosetting polymer adhesive which is formed by the reaction of various epoxy resin and the curing agent. It has excellent bonding performance, high tensile strength, good acid and alkali resistance, excellent electrical insulation properties and chemical stabil......
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Sophie
heat treatment of metals in ancient China
Heat Treatment of Metals in Ancient China
The history of heat treatment of metals in China dates back to the Shang Dynasty (1600-1046 BCE). This early heat treatment was used to soften and harden bronze utensils and weapons such as knives and spearheads, by heating and cooling in a process that i......
A Review of Brazing (Part 1)
Introduction to Brazing
Brazing is a widely used method for joining two pieces of metal together, usually with a filler metal, such as copper, brass, bronze, or aluminum. The brazing process is fairly simple, as it involves heating the pieces of metal with a torch or other heat source and then in......
Application of Deep Well Manual Pump in Rural Water Supply
Deep Well Hand Pump for Rural Water Supply
Water is an essential element for all life forms. In many rural and undeveloped areas, access to clean and safe drinking water can be seriously affected by shortages or poor infrastructure. With populations increasing in many parts of the world, clean ......
Chuck
THE HISTORY OF EATING UTENSILS
One of the key elements of any civilization is the tools and utensils used by its people for the purpose of eating and food preparation. Eating utensils are usually the first tools invented by people, as the need for them is universally experienced. Not surprisingly......
Different characteristics of special vibration bearings and ordinary bearings
Vibration special bearings and ordinary bearings have certain differences in performance, structure and manufacturing technology.
1. The same application is better than traditional bearings, such as electric motors, alternators and general-purpose machinery, which require smaller outer diameter a......
Roundness measurement
Roundness Measurement
Roundness measurement is the process of measuring the perfect round or cylindrical shape of an object. It is done by measuring the radius and circumference of the object so that the exact shape can be determined. Roundness measurement is most commonly used in the engineering......
Bearing measurement error
Measurement Error of Bearings
Bearings are devices designed to provide rotational and/or translational motion between two mating components. Bearings are commonly used in a variety of machinery and engineering applications, including automobiles, aircraft, centrifugal pumps and industrial machine ......
Debugging and Calibration Procedures for Pilot-operated Safety Valves
Safety Valve Calibration and Test Procedure
Safety valves are an important component of many industrial processes, acting as an emergency relief device to prevent overpressure from leading to explosion or other catastrophes. In order to ensure the effectiveness of safety valves, it is necessary t......
Features of Centerless Grinding of Bearing Rings
The outer diameter of bearing ring is often subjected to finish grinding after forging or turning. Finishing grinding of bearing ring is an important process in bearing manufacturing, which affects the accuracy and performance of bearing, so it requires higher accuracy and stability.
Finishing gr......
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