Search results for keyword: contraction
welding crack
Welding Cracks
Welding cracks are a major issue in the metals fabrication industry due to the significant cost, safety and performance implications they bring. Cracks in welds occur when sections of metal are joined together using welding and they present a number of potential problems.
Cracks m......
1031 
Sophia
Research on Thermal Error Compensation of Machining Center
： Research of machining center thermal error compensation
Abstract: In the process of machining, the thermal error produced by machining must be compensated. If the thermal error is not compensated, it will affect the precision of the machining surface. Machining center plays an important role in......
Composite processing technology for niobium-titanium superconducting materials
The composite processing technology of Nb-Ti superconducting materials
Superconducting materials are widely used in many fields due to their unique properties, such as zero electrical resistance, high temperature superconductivity and so on. Among them, Nb-Ti alloys are the most widely used and w......
kainite
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Potassium, Magnesium and Alum
Potassium, magnesium and alum are all naturally occurring minerals that are essential to the human diet and to a healthy lifestyle. Potassium is an important part of many diet plans. It helps to regulate blood pressure, keep bones strong and m......
Elemental Minerals Medicinal Minerals
Medicinal Minerals
Medically, minerals are known as bio-elements”, elements that are used in the formation and function of the bodys cells and organ systems. They are needed by the body to perform metabolic processes, including the ability to grow, repair and reproduce, immunity, and injury heal......
concrete construction joints
Concrete Construction Joints
Concrete construction joints are important parts of any concrete structure and need to be built properly to ensure the structure is strong and durable. A construction joint is a clearly defined joint in a concrete structure where two sections of concrete meet and are ......
Magnesium regeneration
Magnesium Regeneration
Magnesium is an all-important element found in our bodies and essential to a healthy and balanced diet. Magnesium is required to maintain good bone health and is a necessary component of bodily functions such as muscle contraction, digestion and nerve transmission. Addition......
Selenium by adding calcium
The Benefits of Using Calcium to Increase Selenium Intake
Selenium is an essential trace mineral found in the body. It plays an important role in many bodily functions, including the production of thyroid hormones, fertility, heart health, and prevention of certain types of cancer. Unfortunately,......
Extraction of selenium and tellurium by soda method
As early as the 19th century, salt was known to have an impact on public health. In the past, it was used to cure and prevent certain diseases, such as scurvy and goiter, but today scientists are discovering even more about the benefits of sea salt. In some parts of the world, sea salt has been fo......
Permissible degree of deformation of iron-based and nickel-based deformed superalloys
Distortion of Iron- and Nickel-Based High-Temperature Alloys
High-temperature alloys have a wide range of applications in high-temperature structures as well as in energy generation systems. They are characterized by their ability to withstand high temperature operating conditions for long periods......
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