Mica used into welding
- Welding electrode
Mica as an additive, can significantly improve the strength and hardness of the electrode, thereby extending the life of the electrode, and mica can improve the electrode fluidity, ensure the quality of the welded joint.
- Welding material
Mica as filling material.
- Welding auxiliary materials
Such as fluxes and protectants in fluxes, mica improves adhesion and activity.
In the protective agent, mica can enhance the hardness and corrosion resistance of the protective film, and improve the protective effect of welded joints.
Advantage
1.Mica potassium content is high (7% -9%) , so it has low ionization potential, which could provide conductive ions, arc combustion stability in the arc combustion process.
2.The content of S and P impurities is low, which is beneficial to reduce the deposition metal s and P, reduce its crack tendency and improve its crack resistance.
3.The adsorption water content is lower (< 1%) , which can improve the moisture resistance, reduce the diffusion hydrogen content of deposited metal& stomatal sensitivity a.It can also improve the grade of X-ray film.
4.Replace with titanium dioxide, reduce costs.
Calcined mica, specially formulated materials in welding.
Mica has a long history used in oil field plugging. As technology continues to improve, the formula for plugging agent continues to be upgraded. The following is a patent for a plugging agent containing mica from the year 2018 to 2024.
Plugging agent for drilling fluid:
In 2018 , particle size in 4-200 mesh mica, add scale is 30-60% .To ensure the oil-based drilling fluid demulsification voltage ,and reduce the loss.
Features:
- The drilling fluid plugging agent has the advantages of self-density, moderate acid solubility, strong pressure resistance, less loss and good application effect.
- Non-toxic, non-polluting environment, applicable to water-based, oil-based mud
- It has no bad effect on other properties of drilling fluid and good compatibility.
High efficient plugging agent for drilling fluid
In 2024 patent for a new invention with a 5-25% mica filling ratio.
Features:
The formula can meet the high pressure requirements of high temperature formation, all levels of calcium carbonate, mica, vermiculite to form a strong adsorption sealing layer, high strength, good temperature resistance, long duration, acid soluble.
Post time:Aug - 21 - 2024
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