Factory supplied Precision Casting Wax for Munich Factory
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Factory supplied Precision Casting Wax for Munich Factory Detail:
Precision Casting Wax mainly is used for precision mechanical process with zero allowance or very limited allowance. We can not adopt general casting technique, but can only adopt zero allowance casting or precision casting. Because of the product’s structure is very delicate and complex especially in bejeweled with golden and silver, such as diamond ring, brooch, earring etc.
The characteristics of precision casting wax are: good coating property, no denaturalization to be heated, good flow ability, good thermal stability, and well surface finish.
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"Based on domestic market and expand overseas business" is our development strategy for Factory supplied Precision Casting Wax for Munich Factory, The product will supply to all over the world, such as: Thailand , Denver , Oslo , Due to good quality and reasonable prices, our products have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.
We show how to purify aluminum nitrate and strontium nitrate by recrystallization. This is important because those two substances must be extremely pure for our upcoming video on making glow in the dark powder.
First make aluminum nitrate from our previous video: https://www.youtube.com/watch?v=u4Ha1SJrazY
Dissolve the dry aluminum nitrate in water and filter off any insoluble materials. We could not filter it off before it dried in the previous video because the particles at that stage are much too small. It needs crystallize once to aggregate into particles large that can be filtered.
After filtering, dry off the aluminum nitrate. The desiccator bag might be useful here: https://www.youtube.com/watch?v=XJFfS_YbbYI
After drying, carefully weigh out the crystals. Then take that mass and add in 20% mass of water. So if you have 50g like me, you add 10g of water (or 10mL since density is 1g/mL).
It won’t all dissolve, so carefully heat the mixture until it dissolves. Then cover it and let it cool down. Eventually it’ll crystallize out purer crystals.
After the mixture cools to room temperature, and left for a few hours. The liquid is poured off and discarded, it has the impurities and is not needed.
The crystals are again weighed and once again they are recrystallized with 20% water.
Once this is done. Dry the final product. I started with 50g and ended up with 17g. But now it’s very pure. Better than 99%
Strontium nitrate also needs to be purified. But it’s solubility doesn’t change that much with temperature so we’ll have to purify by slow evaporation recrystallization rather than thermal cycle recrystallization.
First, make strontium nitrate like our previous video: https://www.youtube.com/watch?v=_rd8b6wNnKA
Once again, dissolve it in water and filter it. Then let it crystallize. But before it dries completely, let the liquid reduce to about 20% of it’s saturated volume. So I started with a saturated solution of 10mL of strontium nitrate, i then waited until it evaporated down to 2mL of fluid. The crystals are not included in this assessment. Then discard the liquid. Repeat the recrystallization process.
Once again, use the desiccator bag to obtain extremely dry chemicals.
We are now ready to produce glow-in-the-dark powder.
Car Decorative Lights Solar Wireless LED Burst Flashing Lights
Description:
1.Solar charging , the lithium battery storage , free wiring, maintenance-free, efficient and environmentally friendly,
2.Product shell injection molding , high-performance silicone potting opening position , corrosion resistance, aging resistance , waterproof performance is extremely good , high-pressure water jets can be avoided by washing the body and cause damage to the product,
3.Intelligent control system,built-in high sensitivity vibration sensors and sensing systems , flashing themselves in low-light environments while driving . And there is a delay off feature,continue to work in the process of parking and red light , parking or no vibration body120Seconds after shut down automatically.
4.After the truck driver take care of features, the car near10Within meters,multi-function warning light will automatically stop light, before overtaking or distance after the warning light starts flashing again .
5.Last inductive switch , built-in 5 Kinds of flashing mode can be self-regulating.
installation:
Warning lights affixed to the car fog position , the car can also be pasted on the front ,rear bumper fixed position or car license in the network .
Use:
Warning lights built-in sensor switch,control diskette close3Seconds to open or close the warning lights,warning lights after opening,close Disk1Remove seconds after flashing mode can be changed once built 5 modes to be adjusted.
5 Modes are:seven colorA,Chunlan,Pure red,Pure Green,Seven colorB,Each mode will 5-30 Kind of strobe combinations.
Package Included:
1 X Car Decorative Lights
