Metallic materials

Spring material 301 and 304 stainless steel

SUS301 (stainless steel spring): The Cr (chromium) component is lower than SUS304 spring, and its corrosion resistance is poor, but cold working can achieve a very high degree of stretch and hardness. It is often widely used in la...

2023-01-13

How many of the four processes that make metal stronger do you know?

01. Hardening with a solid solution >>>> Definition The solid solution of alloying elements in the base metal causes a certain lattice distortion, thereby increasing the strength of the alloy. >>>> Princip...

2023-01-13

There is a kind of bearing called self-lubricating bearing.

(1) Development of self-lubricating bearings The technology of manufacturing self-lubricating bearings originated in England. In the 1950s, PTFE (polytetrafluoroethylene) began to be tested as a bearing material in the UK, and at...

2023-01-13

Plasma surface treatment improves adhesion between adhesive and rubber

The rubber industry uses plasma surface treatment technology. Ions in the plasma are used to accelerate chemical corrosion or to accelerate the impact on the substrate. This selectively changes the surface's shape, thereby improvi...

2023-01-12

Common gear materials and their heat treatment

1. Low carbon steel and low carbon alloy steel (steel 20, 20Cr, 20CrMo, 20CrMnTi) 1. Preheat Normalization—— 1) Mainly to improve the mechanical properties of mild steel and improve machinability, 2) Grain refinement, elimination ...

2023-01-12

Passenger car development, market demand for MMC metal matrix composite material is increasing.

The development of passenger cars, the market demand for metal matrix composites (MMC) is growing. #Composite material#Metal matrix composite (MMC) is a composite material obtained by joining a metal and its alloys with one or mo...

2023-01-12

Lightning Protection and Grounding Device Engineering Quantity Calculation

1. Calculation of the amount of equipment for installing a lightning rod Lightning rods are installed on flat roofs, walls, structures, chimneys and metal containers. 1. Rated Unit①Installation of lightning rods on flat roofs, wa...

2023-01-12

Current state and development prospects of microselective laser melting technology

The advent of additive manufacturing has made a significant change to traditional manufacturing processes. It offers a new model for the manufacturing industry and has many applications in medicine and aviation as well as in const...

2023-01-12

Can metal really be in the microwave?

When opening the instruction manual for the microwave oven, we will see the following note: Do not put metal objects in the microwave oven to heat up. But if you look closely, you will find that the inside wall of the microwave ov...

2023-01-12

By Fire and Sword - Exploration of metallic materials

Introduction: Our modern lives are full of many metal products, from the Volkswagen streetcar to the Shenzhou spacecraft that travels among the stars, to the giant ship of 10,000 tons to the micron electrode. Our human society ha...

2023-01-12