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
ElongationCross Section
Stretch Ratio
Impact
Toughness
Hardness
of Wearable
Layer
Hydrostatic
Testing
Pressure
MN/
MN/
%
%
J/c
HRC
Mpa
>610>70055.1>15>385.6-12.9
Double tube wear resitant tube
Double tubesInside 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 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
10-15
12000/15000
需更换
22
复合耐磨管
355
264000
管口处磨损
弯管
Elbow
16Mn
25
16000
需更换
12
复合耐磨管
244
192000
2mm
水平管
horizontal tubes
16Mn
150-170
12000
更换
10.5
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
140
2.6
复合耐磨管
368
弯管
Elbow
16Mn
90
6
复合耐磨管
540
水平管
horizontal tubes
16Mn
154
2.6
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
Wear-resistant Alloy Composite 90 degree bend

Technical Parameters of 90 degree bend
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/
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

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