Hard ceramic patch wear-resistant elbow

Hardened ceramic patch wear-resistant elbows are specifically designed for pipe bends, differing from the linear conveying function of straight pipes, as they achieve medium redirection through precise radius of curvature (R=1.5D, etc.), with a focus on enhancing erosion resistance at the bend points. The curvature radius can be customized as needed, and installation does not require on-site processing. This elbow has a wide temperature resistance range and can operate stably from - 50℃ to 300℃. It is also easy to install and performs exceptionally in wear-prone areas of elbows in the power and metallurgical industries. Compared to elbows made of conventional materials, its lifespan can be extended several times over. Hard Ceramic Patch Wear-Resistant Pipe Product Performance (1) High hardness and strong impact resistance: Its Rockwell hardness is HRC80-90, second only to diamond, surpassing significantly the abrasion resistance of wear-resistant steel and stainless steel. Experiments demonstrate that a 10- kilogram steel ball freely falls from a height of 3 meters impacting the inner ceramic tiles 20 times without causing any breakage or detachment of the ceramic tiles. (2) Extremely excellent abrasion resistance: The abrasion resistance of hard ceramic tile pipe is equivalent to 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. Under similar working conditions, this could extend equipment usage by at least ten times. (3) Lightweight: The density of the ceramic tiles is 3.5g/cm³, only half of that of steel, which significantly reduces the equipment load. (4) Strong adhesion and excellent heat resistance: The ceramic pieces are bonded to the inner wall of the steel pipe using high-temperature-resistant strong adhesive, which can operate for a long time without aging in an environment of 350℃; the inorganic adhesive used for bonding products can withstand temperatures up to 750℃. The ceramic pieces are made by high-temperature firing, with a very small coefficient of expansion, and are further fixed with medium-hole conical rivets welding, ensuring strong adhesion and resistance to falling off. (5) Unique adhesive technique: Designed based on the principle of arched self-embedded structure, the ceramic tiles form a 360° mechanical self-supporting structure, tightly adhering to the inner wall of the steel pipe and mutually compressing. All contact surface edges of the ceramic tiles are designed with a conical shape to achieve interlocking between tiles, effectively preventing the tiles from falling off; the gap between the tiles and the inner wall of the steel pipe is filled with high-temperature-resistant bonding refractory mud that can withstand 1100°C, forming a double protection. (6) High-precision ceramic block cutting: The maximum designed angle for the elbow curvature does not exceed 15 degrees. Parameters such as the width of the ceramic block, edge angle taper, and contact angle have been completed through CAD design. The ceramic block shape is precisely cut using diamond grinding discs. The gap between ceramic blocks in the direction of material flow is less than 0.5mm. In the perpendicular direction to the material flow, the gap between ceramic tiles does not exceed 1mm, and the height difference between adjacent ceramic tiles surfaces does not exceed 2mm. (7) Capable of withstanding demanding operating conditions: Due to the use of polymer bonding agents as the method of fixing ceramics to the steel pipe, the elbow can withstand the significant impact force generated by the material and can be used under high-temperature operating conditions. Product Applications Mining and Metallurgy Industry: Suitable for equipment such as mixed material silos, chutes, and ribbon mixers, capable of handling high-intensity transport wear of materials like ores. Steel industry: Performs outstandingly in scenarios such as the outlet pipes of coal grinders, the inlet pipes of coarse-fine powder separators, and coal powder pipelines, withstanding the continuous erosion of media like coal powder. Cement industry: Adaptable to dust collection pipes, ash discharge pipes, slag discharge pipes, limestone distributors, etc., effectively resisting erosion from dust and particulate materials. Chemical industry: In some chemical production processes, it is necessary to transport corrosive media containing hard particles (such as catalyst particles, fertilizer raw materials, etc.). Ceramic patches are corrosion-resistant (except for a few acids like hydrofluoric acid) and wear-resistant, making them suitable for such pipelines.

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Hard Ceramic Patch Wear-resistant Elbow

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Hard Ceramic Patch Wear-resistant Elbow

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Product Overview

The curvature radius can be customized as needed, and installation does not require on-site processing. This elbow has a wide temperature resistance range and can operate stably from -50℃ to 300℃. It is also easy to install and performs exceptionally in wear-prone areas of elbows in the power and metallurgical industries. Compared to elbows made of conventional materials, its lifespan can be extended several times over.

Hard Ceramic Patch Wear-Resistant Pipe Product Performance

(1) High hardness and strong impact resistance: Its Rockwell hardness is HRC80-90, second only to diamond, surpassing significantly the abrasion resistance of wear-resistant steel and stainless steel. Experiments demonstrate that a 10-kilogram steel ball freely falls from a height of 3 meters impacting the inner ceramic tiles 20 times without causing any breakage or detachment of the ceramic tiles.

(2) Extremely excellent abrasion resistance: The abrasion resistance of hard ceramic tile pipe is equivalent to 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. Under similar working conditions, this could extend equipment usage by at least ten times.

(3) Lightweight: The density of the ceramic tiles is 3.5g/cm³, only half of that of steel, which significantly reduces the equipment load.

(4) Strong adhesion and excellent heat resistance: The ceramic pieces are bonded to the inner wall of the steel pipe using high-temperature-resistant strong adhesive, which can operate for a long time without aging in an environment of 350℃; the inorganic adhesive used for bonding products can withstand temperatures up to 750℃. The ceramic pieces are made by high-temperature firing, with a very small coefficient of expansion, and are further fixed with medium-hole conical rivets welding, ensuring strong adhesion and resistance to falling off.

(5) Unique adhesive technique: Designed based on the principle of arched self-embedded structure, the ceramic tiles form a 360° mechanical self-supporting structure, tightly adhering to the inner wall of the steel pipe and mutually compressing. All contact surface edges of the ceramic tiles are designed with a conical shape to achieve interlocking between tiles, effectively preventing the tiles from falling off; the gap between the tiles and the inner wall of the steel pipe is filled with high-temperature-resistant bonding refractory mud that can withstand 1100°C, forming a double protection.

(6) High-precision ceramic block cutting: The maximum designed angle for the elbow curvature does not exceed 15 degrees. Parameters such as the width of the ceramic block, edge angle taper, and contact angle have been completed through CAD design. The ceramic block shape is precisely cut using diamond grinding discs. The gap between ceramic blocks in the direction of material flow is less than 0.5mm. In the perpendicular direction to the material flow, the gap between ceramic tiles does not exceed 1mm, and the height difference between adjacent ceramic tiles surfaces does not exceed 2mm.

(7) Capable of withstanding demanding operating conditions: Due to the use of polymer bonding agents as the method of fixing ceramics to the steel pipe, the elbow can withstand the significant impact force generated by the material and can be used under high-temperature operating conditions.

Product Applications

Mining and Metallurgy Industry: Suitable for equipment such as mixed material silos, chutes, and ribbon mixers, capable of handling high-intensity transport wear of materials like ores.

Steel industry: Performs outstandingly in scenarios such as the outlet pipes of coal grinders, the inlet pipes of coarse-fine powder separators, and coal powder pipelines, withstanding the continuous erosion of media like coal powder.

Cement industry: Adaptable to dust collection pipes, ash discharge pipes, slag discharge pipes, limestone distributors, etc., effectively resisting erosion from dust and particulate materials.

Chemical industry: In some chemical production processes, it is necessary to transport corrosive media containing hard particles (such as catalyst particles, fertilizer raw materials, etc.). Ceramic patches are corrosion-resistant (except for a few acids like hydrofluoric acid) and wear-resistant, making them suitable for such pipelines.

Packaging

Standard export-ready packaging suitable for all types of transportation, or packaged according to your specific requirements.

① Bare (no packaging whatsoever, delivered as individual pieces, can be welded to include lifting lugs) ② Wooden crate packaging ③ Steel frame packaging ④ Strapping bands ⑤ Wooden pallet

Container size

20-foot Standard Container (20GP): Internal dimensions are 5,898 mm (L) × 2,352 mm (W) × 2,390 mm (H), with a volume of approximately 28 m³.

40-foot Standard Container (40GP): Internal dimensions are 12,032 mm (length) × 2,352 mm (width) × 2,390 mm (height), with a volume of approximately 58 m³.

40-foot High Cube (40HQ): Internal dimensions 12,032 mm (L) × 2,352 mm (W) × 2,698 mm (H), with a volume of approximately 68 m³

45-foot High Cube (45HQ): Internal dimensions are 13,556 mm (length) × 2,352 mm (width) × 2,698 mm (height), with a volume of approximately 86 m³.

In mining development, which type of wear-resistant pipe offers a better balance between functional adaptability and economy for long-distance transportation of media such as mineral concentrate and slurry?

SHS ceramic lined composite steel pipe exhibit high hardness and excellent wear resistance. The smooth surface of the ceramic lining, with its low roughness, reduces frictional resistance during media transport, effectively resisting wear caused by particle erosion and reducing energy consumption. In long-distance transport, it can reduce the load on pumps and save operating costs, making it a superior choice for long-distance media transport.

The oil industry deals with high-pressure transportation of sand-containing crude oil, and the sand particles are abrasive. From the perspective of compression resistance and wear resistance, which material would be more suitable?

High-pressure crude oil transportation containing sand requires a balance between pressure resistance and wear resistance. SHS ceramic lined composite steel pipe offer good wear resistance but are brittle and prone to cracking under high pressure, with only moderate pressure resistance. Hard ceramic patch composite steel pipe have good wear resistance, but the bonding strength of the laminations may be affected under high pressure, posing a risk of detachment. Bimetallic composite steel pipe have a strong base steel pipe with high pressure resistance, and the wear-resistant alloy layer addresses sand abrasion. Their overall performance is well-suited to high-pressure conditions; although more expensive, they guarantee stability under high-pressure conditions. Therefore, Bimetallic composite steel pipe remain the more suitable choice.

In the chemical industry, when transporting corrosive acid and alkaline solutions, which material is more suitable—considering both corrosion resistance and wear resistance reliability?

The core advantage of SHS ceramic lined composite steel pipe lies in the chemical stability of the ceramic lining, exhibiting extremely strong corrosion resistance to acid and alkali solutions and effectively resisting the erosion of hydrogen ions and hydroxyl ions. Simultaneously, the high hardness of ceramic provides good resistance to wear from small amounts of solid particles in solutions. In scenarios with few solid particles and moderate impact, SHS ceramic lined composite steel pipe offer the best cost-performance ratio.

Adaptability to metallurgical high-temperature dust scenarios (temperature >300°C)?

Ceramic patch tube + external insulation layer.

Alumina ceramics can withstand temperatures up to 800℃, but the steel pipe body needs to be protected against high-temperature deformation;

SHS ceramic lined are prone to cracking at high temperatures due to differences in their coefficients of thermal expansion.

In bimetallic tubes, the hardness of high-chromium cast iron decreases by 50% at temperatures above 400℃, and its wear resistance drops sharply.

Typical Application Scenario Recommendations

Scene	Recommended Tube Type	Reason
Underground Grouting (Large Particles)	Bimetallic Composite steel Pipe	Highly resistant to impact, capable of withstanding ore collisions.
Tailings Transportation (High Abrasion)	SHS Ceramic-lined Composite Steel Pipe	Excellent wear resistance, suitable for fine-particle slurries
Chemical Acid Liquid Transportation	SHS Ceramic-lined Composite Steel Pipe (Low Pressure)	Corrosion-resistant and lower in cost
High-pressure sand-containing petroleum medium	Bimetallic Composite steel Pipe	Balancing both pressure resistance and wear resistance
Metallurgical High-Temperature Dust	Hard Ceramic Patch Composite steel pipe (Requires Insulation Layer)	Ceramics are heat-resistant and wear-resistant.