Sapphire Crystal Wire Cutting Fluid

Sapphire Crystal Wire Cutting Fluid is a high-performance cooling lubricant specially developed for sapphire and other superhard materials in precision wire cutting processing. It plays the role of cooling, lubricating, cleaning and protecting the knife line during the cutting process, ensuring the stability of the cutting process and the high precision of the cutting surface. This type of Cutting Fluid is often used in high-precision fields such as LED sapphire substrates, optical sapphire wafers, and smart wearable mirrors.

Application:

LED sapphire substrate cutting: ensure wafer size consistency and high yield

Sapphire optical lens processing: ensure mirror finish and precision

Smart wearable device mirror cutting: ultra-thin sapphire sheets such as smart watches, rings, optical windows, etc.

Semiconductor crystal slicing: such as GaN on Sapphire substrate processing

Sample preparation in precision material science research

Material:

Base fluid: deionized water or organic solvent

Lubricating additives: polyether ester, alcohol ether, polyol lubricating ingredients

Coolant: improve thermal conductivity, commonly polyols or trace fluorides

Cleaning agents: such as surfactants, improve dust dispersion ability

Rust inhibitors: commonly used amines or phosphate compounds

Defoaming agents: such as polysiloxane additives

Features:

Low viscosity and high fluidity: typical dynamic viscosity is 1.2-1.5 mPa·s, which effectively reduces liquid resistance during wire cutting and improves cutting efficiency

Excellent cooling performance: specific heat capacity up to 4.1 J/g·K, quickly remove the high temperature generated at the contact point between the knife line and the workpiece to avoid thermal damage to the material

High lubricity: reduce the friction between the knife line and the workpiece, and reduce the wire breakage rate

Good cleaning performance: effectively remove the powder generated by cutting and keep the processing area clean

Low foam design: low foaming formula reduces the foam accumulation of liquid in the circulation system to ensure stable operation of the equipment

Rust and oxidation resistance: has a good protective effect on machine tools and knife lines, avoiding metal corrosion

Environmentally friendly and non-toxic: formulated with environmentally friendly raw materials, in line with RoHS and REACH standards

Advantages:

Significantly improve cutting accuracy: Due to the hardness of sapphire crystal as high as Mohs 9, traditional processing methods are very likely to cause edge collapse or cracks, while high-quality wire Cutting Fluid performs well in reducing friction and controlling temperature rise, making the cutting edge more neat, and the surface roughness can reach Ra0.05μm or less, meeting the requirements of optical-grade applications

Extend the life of the knife line: The knife line is subjected to high stress during the cutting process. The Cutting Fluid reduces wire wear by providing lubrication and buffering. Experiments have shown that it can extend the life of the knife line by more than 15%

Reduce scrap rate: Using ordinary cutting fluid may cause crystal cracks or surface burns, and high-quality cutting fluid can increase the yield to more than 98%

Wide compatibility: It can be adapted to a variety of wires such as metal wire, resin sand wire, diamond wire, etc.

Reduce equipment maintenance costs: Excellent anti-foaming and cleanliness slow down the speed of cutting fluid contaminating equipment and extend the service life of the filtration system and pump

High stability: Even under the condition of long-term cutting of high-hardness crystals, the cutting fluid has stable chemical properties and is not easy to deteriorate

FAQ:

What should I do if there is a lot of foam during wire cutting?

It may be that the cutting fluid is aging or the low-foam performance is insufficient. It is recommended to replace it with low-foam Sapphire Crystal Wire Cutting Fluid and replace the fluid regularly. The foam volume of some products is controlled within 50ml/min, which is suitable for high-speed cutting.

How often should the cutting fluid be replaced?

It is usually recommended to replace it every 2 to 4 weeks, depending on the frequency of use, processing materials and liquid contamination. If the color of the liquid becomes turbid or the cooling effect decreases, it should be replaced in advance.

Are there any restrictions on the material of the cutting wire?

Highly compatible cutting fluid is suitable for mainstream cutting wire materials such as metal wire, diamond wire, resin wire, etc., and will not cause wire corrosion or performance degradation.

Will the cutting fluid cause chemical corrosion to sapphire crystals?

No. The pH value of high-end cutting fluids is generally controlled between 7.0±0.5, which is neutral or slightly alkaline, and will not react with sapphire crystals to ensure the stability of the material itself.

Does it meet environmental protection requirements?

High-quality cutting fluids use non-toxic and harmless formulas, do not contain heavy metals and volatile organic compounds, comply with RoHS, REACH and Chinese environmental protection standards, and are suitable for export.