Bimetal Clad Pipe Bend

 
Bimetal Clad Pipe Bend are cast with mold vanishing vacuum suction casting cladding process. Outer of straight pipe is common steel pipe, cladding realized by forming high chromium lining via centrifugal forming technique.

1. Manufacturing Process of Bimetal Clad Pipe and Bend:

Bimetal Clad Pipe and Bend are cast with mold vanishing vacuum suction casting cladding process. Outer of straight pipe is common steel pipe, cladding realized by forming high chromium lining via centrifugal forming technique. Outer of bend uses hot-bending bend and lining is cast with high-chromium cast iron. Bends and other profile sections can be cladded in whole and this process has changed the traditional practice to fabricate bend and other profile sections by drawing polyline without changing flow pattern of material inside piping,greatly reducing conveyance resistance of material.

2. Advantages Compared with Traditional Wear Resistant

Alloy Cast Iron, Alloy Cast Steel, General Clad Steel Pipe and Cast Stone Pipe:

1. Good wear-resistance, giving full play to wear-resistance of high chromium cast iron.
2. Withstanding high pressure:
Bimetal cladding pipe and bend can be used for any pressure rating. Close bonding of outer and lining by adopting special process make cladding interlayer molten-joint to ensure reliable operation.
3. Good mechanical impact and thermal impact resistance property.
4. Convenient in connection for installation:
Bimetal cladding pipe and bend can be cut and welded as you like.

3. Physical Properties of Bimetal Clad Pipe and Bend:

Flexure Strength	Tensile Strength	Elongation	Cross Section Stretch Ratio	Impact Toughness	Hardness of Wearable Layer	Hydrostatic Testing Pressure
MN/㎡	MN/㎡	%	%	J/c㎡	HRC	Mpa
>610	>700	5	5.1	>15	>38	5.6-12.9

Double tube wear resitant tube

Inside material is so wear resistantace to transport more valume concrete. Outside low carbon steel play the role of protection.
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Wear Resistant pipe bend

The Manufacturing Process of Wear Resistant Ceramic Lined Steel Pipe bend:
SHS-ceramic steel pipe and elbow create a new generation of abrasion and corrosion resistant engineering pipeline which are produced in a way of Self-propagating High-temperature Synthetic process.

Wear resistant elbows are composed of three layers: ceramic, intermediate, and steel layers. The ceramic layer is formed by molten alumina at a temperature above 2500 degree.

The molten alumina produced from the reaction Fe2O3+2Al=2Fe+Al2O3 spreads on the inside wall of the steel pipe under the influence of a centrifugal force, then solidifies, so the ceramic layer has high density and smooth surface and bonds to the elbow.

Features of Alumina Ceramic 
Alumina is a cost effective and widely used material in the family of engineered ceramics. Alumina ceramics have been developed and optimized for maximum wear resistance and corrosion resistance. A high density, diamond like hardness,fine grain structure and superior mechanical strength are the unique properties that make it the material of choice for a wide range of demanding applications. Ceramic has uses similar to Cast Basalt but it has greater resistance to wear in high velocity applications and impact resistance in extreme dynamic systems .

Product: Wear Resistant Elbows/Bends

• Size: DN40-DN600
• Wall Thickness: 3-10mm
• Housing Material: Seamless Carbon Steel
• Inner Material: 95% Alumina Ceramic
• Ceramic Thickness: 3 to 6 mm
• Normal Operation Velocity: 20-35m/s
• Normal Operation Temperature: -50---800degree

Obvious performance of wear resistant elbows: 

1. Heat-resistance, -50 - 800 Celsius degree
2. Easy Installation and Anti-Scaling
3. Abrasion-Resistance and hardness, is above 9.0
4. Corrosion-Resistance,10 times of stainless steel pipe
5. Economical Cost, 20-30% lower than that of anti-abrasion alloy steel elbows.

Application Fields 

• Paper Making: For conveying pulp.
• Shipping: For clearing shipping channels and sediment transportation.
• Metal Mines: For conveying tailings, concentrates and backfill minerals.
• Coal Preparation Plants: For conveying dense media, mixture and coal slurry.
• Power Plants: For deashing, deslagging, coal dropping, powder transportation

Wear-resistant Alloy Composite 90 degree pipe bend

Wear-resistant Alloy Composite Pipe bend

 Wear-resistant alloy steel tubes for the base, lined with super wear-resistant alloy by centrifugal casting, metallurgical combine to form a solid body. LFC elbow vacuum casting process. Resistant alloy tube both excellent wear resistance, high temperature resistance and impact resistance, but also has good toughness, excellent thermal shock resistance to mechanical properties, welding performance, easy installation. Especially suitable for high temperature wear cold shock. Such as electric power, metallurgy, coal, mining, cement and other material handling industry. The product is compared with other wear-resistant pipe, long life, cost of investment economy.

Overall mechanical properties

抗弯强度 Flexure strength	抗拉强度 Tensile strength	延伸率 cpecific elongation	断面伸缩率 cross sedtion Stretch ratio	冲出韧性αK Impact toughess	耐磨层硬度 thickness of Wearable Layer	静水压试验压力 Hydrostatic Testing pressure
MN/m²	MN/m²	％	％	J/cm ²	HRC	Mpa
＞610	＞700	5	5.1	＞15	≥50	5.6-12.9

Performance comparison composite wear 16Mn steel pipe and concrete delivery

管型 Tube type	管型 Tube type	使用时间（天） Service period(day)	输送物料（吨） Material transported	磨损程度 attrition rate	提高寿命 improve lifespan
竖直管 vertical tube	16Mn管	10-15	12000/15000	需更换	22倍
	复合耐磨管	355	264000	管口处磨损
弯管 Elbow	16Mn管	25	16000	需更换	12倍
	复合耐磨管	244	192000	2mm
水平管 horizontal tubes	16Mn管	150-170	12000	更换	10.5倍
	复合耐磨管	438	126000	磨损不明显

管型 tube type	管型 tube type	使用时间（天） Service period(day)	提高寿命 improve lifespan
竖直管 Vertical tube	16Mn管	140	2.6倍
	复合耐磨管	368
弯管 Elbow	16Mn管	90	6倍
	复合耐磨管	540
水平管 horizontal tubes	16Mn管	154	2.6倍
	复合耐磨管	400

Wear-resistant alloy composite pipe Features

A good overall performance

    Composite pipe outer wall with steel , lined with high-chromium alloy , the two formed a good metallurgical bond , both high alloy materials for wear and corrosion resistance properties, but also high mechanical strength and less high impact resistance , to solve a single material can be difficult to reconcile the contradictions and abrasion resistance welding , the material play to the best level of performance advantages, the use of safe and reliable.

2 high wear resistance

    The composite wear layer composite pipe of high -chromium alloy , containing about 45% of the organization of the hard carbide M7C3 type , since this structure Ka rod- type carbide , and it has a high toughness ; while Ka macrohardness carbide micro- hardness is high (HV1500-1800), in the wear layer above HRC55 , so good wear resistance .

3 corrosion resistance , high temperature performance

    Since the composition and structural characteristics Ka carbide substrate and the Cr content of the solid solution has a strong heat resistance, corrosion resistance , high temperature or corrosive environment can show good corrosion resistance, wear resistance.

4 advanced, stable composite technology

    The wear-resistant pipe and elbow by LFC vacuum casting composite manufacturing process, namely F casting method , with the manufacturing process of composite wear-resistant pipe has the following characteristics :

    ( 1 ) The process is simple , easy to operate production yield.

    ( 2 ) Since the process is characterized by high precision tooling size , using an inner tube lined with real high vacuum in the tube by suction casting , so the product , the precise size , density is good.

    ( 3 ) using the method of vacuum casting process F resistant alloy composite pipe production and elbow, homogeneous and stable performance. Does not appear , cracks holes and other phenomena .

5 , good thermal shock performance

    Since the inner tube composite wear , thermal expansion coefficient of the outer layer equivalent to a high level and constantly changing rapidly changing conditions occasions inner fragmentation does not occur , the phenomenon of early failure occurred small pipe system running resistance, beautiful appearance beauty .

6 . Transportation, installation and ease of use

    Alloy composite pipe and elbow quick connector or flange can be welded directly mounted . As the fight against high- performance composite pipe , the pipe diversion occurs when a partial plugging free to percussion , arbitrary cutting , unloading change , installation , maintenance is very convenient.

alloy composite wear-resistant pipe applications

 1 , power plants and coal transportation systems, dry ash conveying pipe ;

 2 , Stone Coal power plant systems ;

 3 , the other a powder pneumatic conveying systems ;

 4 , hydraulic transmission systems and larger particle size slag slurry transportation ;

 5, other mining material handling .

Wear-resistant Alloy Composite 90 degree bend

Technical Parameters of 90 degree bend

序 号	公称 通径 DN	复合 外管 D×t	耐磨层 总 壁	总壁厚	实际 内径	弯曲 半径 D	理论 重量 Kg/件
1	100	121*6	12	18	85	3D	31.2
2	100	127*6	13	19	89	3D	36.6
3	125	133*6	13	19	95	3D	40.4
4	125	140*6	13	19	102	3D	44.8
5	125	146*6	14	20	106	3D	51.6
6	125	152*6	14	20	112	3D	56.3
7	150	159*6	14	20	119	3D	61.1
8	150	168*8	14	22	124	3D	75.2
9	150	180*8	15	23	134	3D	91.2
10	175	194*8	15	23	148	3D	107.1
11	175	203*8	15	23	157	3D	117.3
12	200	219*8	16	24	171	2.5D	119.8
13	225	245*8	16	24	197	2.5D	152.0
14	250	273*8	16	24	225	2.5D	190.0
15	275	299*8	17	25	249	2.5D	239.5
16	300	325*8	17	25	275	2.5D	285.0
17	325	351*8	17	25	301	2.5D	332.5
18	350	377*10	17	27	323	2.5D	416.6
19	375	402*10	17	27	348	2D	379.7
20	400	480*10	18	28	370	2D	444.1
21	425	450*10	18	28	394	2D	497.4
22	450	480*10	18	28	424	2D	568.3
23	475	500*10	18	28	444	2D	616.9
24	500	530*10	19	29	472	2D	720.3
25	550	600*10	19	29	542	2D	929.4
26	600	630*10	19	29	572	1.5D	769.1
27	700	720*12	20	30	660	1.5D	1042.6
28	800	820*12	20	32	756	1.5D	1450.7
29	900	920*12	20	32	856	1.5D	1834.2
30	1000	1050*12	20	32	986	1.5D	2475.3