1. Shale
Shale is a fine-grained sedimentary rock formed through the deposition and compaction of silt and clay under pressure and temperature over time. It typically exhibits thin, sheet-like layers or laminae, making it distinct from other sedimentary rocks.
The main chemical composition of shale includes silica (SiO₂) ranging from 45% to 80%, alumina (Al₂O₃) between 12% and 25%, ferric oxide (Fe₂O₃) from 2% to 10%, calcium oxide (CaO) up to 12%, and magnesium oxide (MgO) up to 5%. These components vary depending on the environment in which the shale was formed.
Shale can be classified into several types, such as calcareous shale, iron-rich shale, siliceous shale, carbonaceous shale, black shale, oil shale, and more. Each type has unique properties and uses, often determined by its mineral content and origin.
Due to its low permeability, shale acts as an effective barrier to groundwater flow, often forming aquitards that prevent water movement between different geological layers.
Calcareous shale
Siliceous shale
Iron shale
Oil shale
Black shale
Carbonaceous shale
2. Cutting
Because of its laminated structure, special care must be taken during the cutting process to ensure stability. For example, when working with black shale, it's recommended not to add water, as it can weaken the layers. The cutting force should be gentle to avoid breaking between layers.
Equipment used: STX-1202 Automatic Diamond Wire Cutting Machine
Cutting
Cut surface
Features:
1. Dry cutting is possible because the cutting line length of 150 meters helps dissipate heat effectively, allowing for efficient recycling.
2. Flexible cutting techniques help avoid stress-induced fractures and edge damage caused by layer separation.
3. It can cut thin sheets, with denser samples allowing for smaller minimum thicknesses.
4. The cut surface is smooth. As the hardness of the sample increases, the surface becomes flatter, even achieving results similar to fine grinding.
3. Sampling
Black shale is relatively brittle, so the sampling diameter should not be too small or deep to prevent breakage.
Equipment: QY-30 Sampler
Sampling after slicing
Whole block sampling
Finished product
Features:
1. Available samples range from 3 mm to 50 mm in diameter and 0 mm to 12 mm in depth.
2. The dimensions are suitable for further testing, and the sampling surface is flat and clean.
3. No cooling is required during the sampling process.
4. The sampling is automatically controlled, ensuring high stability and consistent results.
4. Imaging
X-ray imaging beam lines or experimental stations provide non-destructive, high-resolution, three-dimensional images of shale, enabling detailed analysis and scientific research.
Configuration of X-ray imaging beam line / experimental station:
Pla Forks,Plastic Fork,Disposable Cutlery Fork,Compostable Fork
Anhui Jianfeng Environmental Protection Technology Co., Ltd , https://www.ahbiocutleries.com