The structure of the core barrel is generally divided into single - acting double core tube and most of the fishing apparatus. The double tube section consists of an outer tube assembly and an inner tube assembly. The outer pipe assembly includes; The main structure and working principle of the cartridge stopper, cartridge chamber, stable joint outer pipe, diamond reamer and diamond bit are as follows:
(1) Spear structure is composed of spear head and recovery spring. When coring, the fishing device is lowered to the upper part of the inner tube assembly in the drill pipe, and the fishing hook grasps the fishing spear, lifts the fishing device up, picks up the recycling card barrel, and inwardly compressing the cartridge card, so that the inner tube assembly and the outer tube are separated, so that the inner tube assembly is lifted up.
(2) The clip structure is mainly composed of the clip frame, clip, spring and other components. Its function is that when the inner tube sits on the outer tube, the clip expands with the help of the elastic force of the expansion spring and sticks to the inner wall of the clip chamber, so that the drilling tool can achieve positioning.
(3) Buffer structure by spring, locking mother, split pin composition. Protecting the inner tube when pulling the core.
(4) Single action structure is realized by two pairs of thrust bearings.
(5) Adjust the length of the inner pipe assembly and the outer pipe assembly of the structure, and fine-tune the lower shaft and the locking mother to achieve the gap required by the end of the spring seat and the step inside the drill bit.
(6) The fishing structure, also known as the fishing device, is mainly composed of fishing hook, hammer and safety rope. The fishing hook is used to hold the spearhead while fishing the inner pipe, and the weight is used to speed up the fishing device's descent to save fishing time. The safety rope is a thin rope. When the inner pipe is stuck for some reason and cannot be lifted, the safety rope can be forcefully lifted and then the drill can be lifted.
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1. Comparison of abrasion resistance:
Anything that wears for a long time wears out, as does the floor. Therefore, wear resistance is an important indicator to test the durability of the floor. In the abrasion test under the same conditions, the paint surface of the ordinary floor has been thoroughly polished after 500 rotations, while the paint film of the blue-and-white process floor has not been thoroughly polished at 4000 rotations.
Technical comments: The blue-and-white porcelain craft floor adopts a unique high-strength, high-cobalt enamel formula. At the same time, during the coating process, high-temperature ultraviolet light curing above 20,000W is used. The surface finish is covered with a glaze treatment to make the paint surface wear-resistant. Up to 4,000 rpm or more.
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2, hardness comparison:
The film hardness is an indicator to measure the surface pressure of the paint film. The national standard requires ≥H. The surface of the floor was tested with a durometer, which could only withstand the H-marked pencil scratch, while the blue-and-white craft floor could withstand the scratching of the 6H-marked pencil without indentation.
Technical comments: The blue-and-white porcelain craft floor adopts original blue-and-white porcelain paint formulas and original lacquer porcelain enamel coating process to form a lacquer-clear enamel paint surface on the floor surface. After testing by the National Quality Supervision and Testing Center for Wood-based Panels, the hardness of the paint film exceeded 6H, which was more than 6 times the national paint floor index. In other words, if you use a pound of heavy iron ball to allow the ordinary floor to press out the impression, then if you want the blue-and-white porcelain craft floor to press out the impression, you must use six pounds of iron ball.
3, scratch resistance comparison:
In the floor paint specification, sufficient paint film strength is the fundamental condition to ensure the scratch resistance of the paint surface. The indicator to measure the strength of the film, one is the surface hardness, the other key is the elasticity of the film. Whether using Newton's strokes, rubbing with steel balls, or scratching with coins, the paint on the floor must withstand forces from two directions. One is the pressure perpendicular to the paint, and the other is the shear parallel to the paint. Force, only the hardness is high, the paint is not easy to be damaged by vertical pressure deformation, the same, only the paint surface elasticity is good, the paint film can withstand large transverse shear force and not easy to scratch. Scratches on the surface of the floor with coins, the surface of the ordinary floor has obvious scratches, and the surface of the blue-and-white porcelain floor is intact. The same pressure was applied to the floor surface with a Newtonian pen, the surface of the ordinary floor was marked with scratches, and the surface of the blue-and-white porcelain floor was intact.
Technical Comments: The high-strength enamel formula is adopted for the blue-and-white porcelain floor paint finish. At the same time, in the paint layer structure, it is the first to add an elastic structural paint layer between the primer and the top coat, thereby forming a high-strength polymer paint finish. The film can withstand a shear force of 40 NT, which is much higher than the general 10NT shear strength of the painted floor. Therefore, the natural paint surface has superior scratch resistance.
4, adhesion contrast:
Adhesion is a measure of the film's flexibility and adhesion to wood. The two types of floors were tested using the cross-cut test method. There were a large number of cracks and peelings on the surface of the ordinary floor, while the surface of the blue-and-white porcelain floor was completely covered and not damaged.
Technical comments: The blue-and-white porcelain craft floor adopts high-tech intelligent elastic primer, high-adhesion glazed finish, permeation of ultra-microcrystalline layer by layer, deep inside the fiber, and the adhesion of the paint film is increased by more than 4 times, reaching the national superior product standard. The paint film is not easy to fall off. The national standard requires that the general lacquer surface adhesion to the surface can reach 3, while the blue-and-white porcelain technics floor has reached the national standard test (GB/T9826-1998) the highest level of the standard level 1.
5, through the bottom of the contrast:
The high-definition bottom is a unique feature of the blue-and-white porcelain floor. Common paint floor because of the top layer of the paint layer too much, masking the natural texture of the wood itself, so the bottom is not good, the color will be a little dark, the wood is not clear; blue and white porcelain paint coating process to reach each floor The square of 400 grams is much larger than the average 100-150 grams of flooring, but the floor surface texture is still particularly clear and glossy.
Technical Comments: The paint formula used on the blue-and-white porcelain craft floor is itself a highly transparent glaze finish, and in the coating process, the glaze treatment is used, which is more beautiful and rich than the general floor.
6, waterproof contrast:
Due to the swell and shrinkage characteristics of wood flooring, the waterproofness of wood flooring determines the adaptability of wood flooring to environmental performance. The most likely to absorb moisture is the back of the wood and parquet, and the water is easily infiltrated from the back of the floor to deform the floor. On the back of the ordinary floor and the blue-and-white porcelain craft floor, clean water was poured. Ten minutes later, the water on the back of the ordinary floor had infiltrated into the interior of the wood, while the water beads on the back of the blue-and-white porcelain craft floor still flowed.
Technical Comments: The blue-and-white porcelain craft floor adopts a six-sided sealing enamel technology that produces a distinctive lotus leaf effect. The paint film on the back of the floor can also block moisture infiltration, and the moisture-proof and waterproof performance of the floor is significantly improved.
7, environmental protection comparison:
The environmental protection of the floor is mainly reflected in the amount of formaldehyde released from the floor. For lacquer flooring, formaldehyde is mainly derived from the paint thinner in the paint process, which is what we often hear about pine scent (turpentine water). It is a transparent liquid with a particularly pungent odor. Ordinary floor paints use a lot of turpentine water containing formaldehyde, while the blue-and-white porcelain craft floor uses paints from Kenfoor's UV green paint and water-based primer.
Technical Comments: The paints used in the blue-and-white porcelain craft flooring are ecological water-based environmental protection primers and solvent-free highly environmentally friendly UV-curing paints. The amount of formaldehyde released is almost zero (conventional instruments cannot detect formaldehyde content), and the benzene content is zero. Its various environmental protection indicators have reached the EU superior product standards, is a real environmental protection floor.
8, oxidation resistance comparison:
Like the human skin, the paint surface of the floor will gradually age, lose luster and vitality over time, which is also the most fundamental difference between the appearance of the new floor and the old floor. Ordinary floor will show aging and fading under the sunlight for a long time, while the blue-and-white porcelain floor paint will still maintain brilliant luster.
Technical Comments: The enamel enamel formula used in the blue-and-white porcelain floor has high gloss retention. In the painting process, UV curing with high-temperature ultraviolet light is used to form a unique blue-and-white porcelain glaze surface that can effectively block ultraviolet light oxidation.
The blue-and-white porcelain craft floor is a painter's wear resistance, paint film hardness, adhesion, scratch resistance, high temperature resistance, flame retardance and scratch resistance, anti-aging properties. High-quality flooring with comprehensive performance in terms of moisture resistance, moisture resistance, etc., its successful R&D has solved many limitations of the use environment of lacquer-finished flooring, making the floor for the first time increased from the use of products to the level of handicrafts, and is hailed by the industry as a pioneering. The following eight performance evaluations of the blue-and-white porcelain floor and the ordinary lacquer floor were used to make a comprehensive assessment, so that consumers can truly understand the excellence of the blue-and-white porcelain floor.