Spiral Knife Sampling Procedure for Soil Bulk Density Measurement

The ring knife plays an important role in the process of soil sampling. When measuring soil moisture, bulk density and other parameters, the work of the ring knife is very important. It is even more important to use a ring knife in order to be able to more accurately devote to soil research.

If you use a ring knife to measure the soil bulk density, the steps are generally like this:

1. First, select the location of the soil profile in the field, and then excavate the soil profile. Sampling is performed at the profile level, and each layer is repeated 3 times. If only the soil bulk density of the tillage layer is measured, it is not necessary to dig the soil profile.
2. Place the ring knife holder on a ring knife of known weight and press the ring knife edge straight down into the soil until the ring knife bowl is full of samples. When the ring cutter is pressed in, it should be steady and consistent.
3. Place a knife with a known weight on the ring knife and place the knife edge perpendicularly into the soil until the ring is filled with the sample. When the ring cutter is pressed in, it should be steady and consistent.
4. Use a soil cutter to cut the soil around the ring knife, remove the ring knife that has been filled with soil, and carefully trim away the excess soil on both ends of the ring knife and clean the soil outside the ring knife. The ends of the ring knife are immediately capped to prevent moisture evaporation. Immediately weighed (accurate to 0.01g) and recorded. 5. Simultaneous sampling at the same layer, using an aluminum box to determine the natural moisture content of the soil. Or remove the sample directly from the ring and measure the soil moisture content. The result was calculated by calculating soil bulk density as follows. d = g • 100 / [V • (100 + W)] where: d - soil bulk density (g/cm3) g - ring wet soil weight (g) V - ring knife volume (cm3) W - sample contains Water volume (%).

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The efficient and economical fiber Laser Cutting Machine adopts international advanced fiber lasers, speed reducers, servo motors, gears, racks and the like, has high precision and stable performance, can cut various metal plates, and is mainly suitable for fast cutting of stainless steel, carbon steel, manganese steel, copper plates, galvanized plates, various alloy plates, rare metals and other materials. Applicable industries: sheet metal, precision instruments, mechanical equipment, metal molds, kitchen and toilet products, auto parts, craft gifts, jewelry, glasses, lighting, mobile phone communication, digital products, electronic components, clocks, computer parts, instruments, etc.

Technical Parameters


Type

CE3015

CE4015

CE6015

CE4020

CE6020

CE4025

CE6025

Effective cutting width (mm)

1500

1500

1500

2000

2000

2500

2500

Effective cutting Length (mm)

3000

4000

6000

4000

6000

4000

6000

Range of vertical stroke (mm)

0-80

Input power

AC380V/50Hz;AC220V/50Hz

Cutting thickness (mm)

Accroding to Laser power

Cutting speed(mm/min)

21000 (1000W/stainless δ1mm)

Idle speed(mm/min)

100000

Maximum Acceleration (G)

1.2

Position repeat accuracy (mm)

±0.05

Laser power(W)

(≤4000W)Accroding to the requriments

Drive mode

Precision rack bilateral drive

Laser wavelength (nm)

1080

Cooling mode

water-cooling

Environmental temperature

5-35℃

Cutting material

Carbon steel, stainless steel, alloy steel, copper, aluminum, galvanized sheet




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