Multi-resistant ceramic lined composite pipe

Multi-resistant ceramic lined composite pipe

Ceramic-lined composite pipe is the use of "SHS- self- propagating high-temperature synthesis of centrifuge technology" made ​​of new composite materials , is a national high-tech "863" plan focuses on industrial projects in the 1990s with the international advanced level. Ceramic-lined composite steel respectively, by corundum (a-AL2O3) ceramic , and steel transition layer composed of three parts from the inside out , even at high temperatures the formation of dense and smooth surface of the ceramic layer through the transition layer combined with a solid steel, fully played a corundum ceramics with high wear resistance, corrosion resistant and high strength steel having excellent toughness and weldability , toughness to overcome the poor and low- carbon steel pipe ceramic hardness , poor wear resistance . Thus , the product has wear, heat , and resistance to mechanical shock and thermal shock, and good weldability excellent overall performance. Especially suitable for slurries, corrosive or high temperature of powder and powder conveying occasions, with long life, light weight, reasonable price , not afraid to touch knock advantages. Extended service life several times to several times.

Ceramic-lined composite pipe can be widely used in electricity, coal, steel , petroleum, metallurgy , mining, building materials, chemicals and energy industries, transport ash, slag , coal , ore, cement , sand and other granular materials , grinding cut ideal medium wear pipeline , not only can greatly reduce the maintenance costs of materials , and can solve many of these industries major technical problems.

Features

1 , good wear resistance

Ceramic-lined composite pipe as AI2O3, Mohs hardness of 9.0 , equivalent to more than HRC90 , abrasion and tungsten carbide cobalt rather , ten times higher than steel .

2 , abrasion , anti- fouling

Ceramic-lined composite steel has excellent corrosion against acid corrosion and fouling characteristics of seawater . Acid 96-98 % with a high degree of corundum porcelain considerable , corrosion resistance than stainless steel 10 times higher . Is acid, alkali and corrosive gases , ideal fluid pipes, can be used for scaling serious dust pipe.

3 , running resistance

Drag coefficient ceramic lined steel pipes smaller than ordinary steel can reduce pipeline running resistance and reduce operating costs.

4, light weight , save steel

Ceramic-lined composite pipe wall thickness compared with wear-resistant alloy steel and cast iron pipe , or about 20% lighter .

5 , low cost

Ceramic-lined composite steel prices 20-30% lower than the wear-resistant alloy cast pipe .

6 , good heat resistance

Ceramic-lined composite pipe can be run in the long-term normal temperature range -50-900 ℃ , material linear expansion coefficient 6 ~ 8 × 10-6 ℃.

7 , easy installation and construction

Ceramic-lined composite steel can be welded , flanged , flexible connectivity options such as quick connectors , installation is very convenient.

Multiple composite pipe

Multiple composite pipe

Multiple composite pipe, and current domestic ordinary ceramic composite pipe except that the inner wall of multi-layer ceramic polymer materials with excellent wear resistance, alkali, acid , anti- fouling , anti-aging , etc. comprehensive performance water . Breaking the previous various composite pipe limitations in practical applications , avoiding the limitations of ordinary ceramic composite steel pipe , widely used in electricity , coal , mining, building materials, chemical industry, transport coal, ash , slag, aluminum fluid, mud and other material grinding particles and corrosive media , is an ideal new generation of composite pipe

Multiple composite pipe performance:

1 excellent wear resistance
    Ordinary ceramic composite steel pipe inner layer of Mohs ceramics , wearable index 0.04 , within two multi-composite pipe abrasion index of German multi- layer composite is 0.02,2 those complex , its wear resistance is a common ceramic composite steel pipe 2.5 times. Especially suitable for power plant ash , coal mining and pipeline transportation and backfill pipes, etc. ;

2 corrosion-resistant, anti-fouling
    Multiple composite pipe has excellent acid corrosion and seawater corrosion and anti- fouling properties. Acid 98-99 % degree of corrosion resistance than ordinary ceramic composite pipe 2 times higher , a variety of acids, alkalis and corrosive gases , ideal fluid pipes, ash can be used for serious structural pipes .

3 long life
    Multiple composite pipe through a special process to polymers and ceramics firmly affixed to pay the inner tube , and due to its liquidity will completely cover the weld , thus completely avoiding the drawbacks of ordinary ceramic composite pipe , increase the service life .

Ultra-high molecular weight polyethylene plastic composite pipe

Ultra-high molecular weight polyethylene plastic composite pipe

Ultra-high molecular weight polyethylene plastic composite pipe, tube is ultra high molecular weight polyethylene pipe for abrasion or corrosion resistant lining material , direct contact with the media working conditions ; to pipe ( pipe , spiral pipe, seamless pipe , etc. ) for voltage protection of the outer tube , the two composite made through a special process equipment, complementary advantages.

Products while retaining the performance advantages of UHMWPE on , but also has the following new features:

Can withstand higher pressure: pressure composite pipe up 5Mpa-8Mpa, to meet mine filling, tailings transport crude oil transportation and other requirements for the use of high-pressure pipelines .
Can withstand higher temperatures : With the support of steel protection , high temperature deformation of UHMWPE pipe can be overcome , so that the operating temperature can be increased to about 100 ℃.

Overcome the low hardness of the plastic tube , easy bending , sagging defects, as the workshop process pipe or open overhead pipes will be more beautiful.
Supporting technologies mature : Di Hao has been declared " ultra high molecular weight polyethylene plastic composite wear-resistant pipe fittings " and " ultra- plastic composite pipe for expansion joints ," two utility model patents , the corresponding supporting technology is very mature pipeline .

UHMWPE wear pipe

Ultra-high molecular weight polyethylene (UHMWPE) is a new kind of engineering thermoplastics with more than 3 million viscosity-average molecular weight. Ultra-high molecular weight polyethylene pipe has superior performance over conventional HDPE pipe such as very high wear resistance, impact resistance, excellent resistance to internal pressure strength, resistance to environmental stress cracking, intrinsically self-lubricating, anti-adhesion, low temperature resistance and excellent chemical resistance.

Ultra-high molecular weight polyethylene (UHMW-PE) is the role of special catalyst, polymerization of viscosity-average molecular weight greater than 2.5 million engineering thermoplastics . Ultra high molecular weight polyethylene pipe with high wear resistance, friction coefficient is extremely small , impact resistance , corrosion resistance, non-scaling , the excellent anti- pressure strength , resistance to environmental stress cracking resistance, good self-lubricating , anti-stick attached , unique low temperature resistance , excellent chemical stability, superior performance , is the most cost-effective pipeline was wearable , long-term at -269 degrees to +80 degrees working conditions , are widely used in metallurgical and mining beneficiation , power plants, grain silos , acid and alkali transport , tailings, slurry and coal transportation , terminals, shipyards, oil, natural gas , textiles, paper , food, chemical , mechanical, electrical and other industries.

    Can be a lot of use in wastewater treatment , pipelines , there are pipeline external corrosion requirements for long-distance transmission of great significance ; due to the thermal conductivity of this pipe is not ten thousand times smaller pipe , can greatly reduce the cost of transporting pipe insulation for the winter in cold regions and transportation of crude oil and other materials are of great significance , can be replaced by stainless steel, wear-resistant alloy tube , plastic composite pipe and other special pipe.

1 wear characteristics
Ultra-high molecular weight polyethylene pipe molecular weight of up to 250 million more than the tube , the friction coefficient is extremely small , it has a high resistance to sliding friction capability. Wear six times higher than normal alloy steel , stainless steel, 29 times . Is 19 times the phenolic resin , nylon six seven times , five times polyethylene , greatly improve the life of the pipeline.

2 the corrosion resistance
UHMW-PE is a saturated molecules structure, so its high chemical stability, corrosion resistance of the product can be harsh chemicals , strong acids except for some slight corrosion at high temperatures , as in other lye , acid in from corrosion. Can be used in a concentration of less than 85% of concentrated hydrochloric acid at a concentration of less than 80% sulfuric acid , nitric acid concentration of less than 20% of the performance is quite stable.

3 anti- impact resistance
In the existing engineering plastics highest impact toughness of ultrahigh molecular weight pipeline , many materials in serious or repeated shock of the explosion would crack , damaged, broken or surface stress fatigue . The product according to GB1843 standards, Izod impact test without damage, and strong to withstand external shocks, internal overload and pressure fluctuations.

4 self-lubricating
Since the ultrahigh molecular weight polyethylene tube containing a waxy substance , and good self-lubricating . Friction coefficient (196N, 2.5 hours) only 0.217MN / m (GB3960). Oil lubricated sliding properties than their steel or brass . Especially in harsh environments , dust, sand and more places , the product itself more fully dry lubricating properties displayed . Not only freedom of movement and protection of related artifacts do not wear or strain.

5 low temperature resistance
Ultrahigh molecular weight polyethylene pipe excellent in low temperature resistance , impact resistance , abrasion resistance of minus 269 degrees when substantially constant . Is a kind of plastic is currently the only operating at near absolute zero temperature. Meanwhile, the optimum temperature of UHMWPE pipe width , long-term work at a temperature of -270 ℃ to 80 ℃ .

6  easy scaling of
Because of ultra high molecular weight polyethylene pipe friction coefficient is small and non-polar , so it has good adhesion to the surface of non- pipe finish . Existing materials in general PH value of 9 or more media in both scale , ultra-high molecular weight polyethylene pipe is not scaling, this feature is used for the power plant fly ash system has great significance. In crude oil, mud and other pipelines is also very applicable .

7 long service life
UHMWPE molecular chain unsaturated genes less fatigue strength of more than 50 million times , optimal resistance to environmental stress cracking resistance , resistance to environmental stress cracking > 4000h, is more than 2 times the PE100 , buried about 50 years of use , still maintain more than 75% of the mechanical properties.

8 easy to install
Ultra-high molecular weight polyethylene (UHMW ---- PE) pipe unit pipe length accounts for only one-eighth the weight of steel , making loading and unloading, transportation, installation more convenient , and can reduce labor intensity of workers , UHMW-PE pipe aging resistance strong , 50 years aging. Whether on the ground erection, or can be buried underground . When installing either welded or flanged connections are safe, reliable, convenient , no corrosion, saving labor , which fully reflects the use of ultra high molecular weight polyethylene pipe "energy , environmental, economic , and efficient" superiority.

9 other features
Ultra high molecular weight polyethylene pipe can still suck , suck noise , antistatic, electronic shielding capability , non-absorbent , light weight, easy machining , coloring and other prominent features.

Bimetal Cladding Steel Pipe

Bi-metal Cladding Steel Pipe

Bi-metal 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.

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

Rare Earth Alloy Wear-resisting Casting Pipe

Rare Earth Alloy Wear-resisting Casting Pipe

Rare earth alloy wear-resistant casting tube

Uses:

Rare high-strength low-alloy heat-resistant, wear-resistant steel parts for the power plant boiler systems in coal, powder, ash slagging pipeline.

Features:

My company and major universities jointly developed a new type of high-strength wear-resistant alloy of rare earth products, it is crucial to overcome the technical material of cold, heat, cracking, brittleness, deformation, etc., with high strength, good toughness, corrosion resistance, weldability well, the process is using the most advanced centrifugal casting, long life, under the same conditions than the high manganese steel materials, wear the unit around one-third of the high manganese steel, high manganese steel service life is three times above. Bends and branches seamless steel pipe sections with supporting the use, installation and maintenance more convenient.

Performance indicators: 

Grade: ZG40CrNiMoMnSiRe

Hardness: HRC ≥ 40

Impact toughness: ≥ 14J/cm2

Tensile strength: ≥ 700MPa

Rare earth alloy wear-resistant casting tube

Rare earth alloy wear-resistant casting tube

Rare earth alloy wear-resistant casting tube

Uses:

Rare high-strength low-alloy heat-resistant, wear-resistant steel parts for the power plant boiler systems in coal, powder, ash slagging pipeline.

Features:

My company and major universities jointly developed a new type of high-strength wear-resistant alloy of rare earth products, it is crucial to overcome the technical material of cold, heat, cracking, brittleness, deformation, etc., with high strength, good toughness, corrosion resistance, weldability well, the process is using the most advanced centrifugal casting, long life, under the same conditions than the high manganese steel materials, wear the unit around one-third of the high manganese steel, high manganese steel service life is three times above. Bends and branches seamless steel pipe sections with supporting the use, installation and maintenance more convenient.

Performance indicators: 

Grade: ZG40CrNiMoMnSiRe

Hardness: HRC ≥ 40

Impact toughness: ≥ 14J/cm2

Tensile strength: ≥ 700MPa

Wear-resistant Alloy Composite Pipe Tee

Wear-resistant Alloy Composite Pipe Tee

Wear-resistant Alloy Composite Y-type Tee

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 Pipe Tee draws

Alloy wear tee technical parameters

序 号	公称通径 DN	复合外管 D×t	耐磨层壁厚	总壁厚	主管段 L	支管段 L1	理论重量 Kg/m
1	100	121*6	12	18	800	300	57.5
2	100	127*6	13	19	800	300	64.3
3	125	133*6	13	19	800	350	70.9
4	125	140*6	13	19	800	350	74.7
5	125	146*6	14	20	800	350	82.5
6	125	152*6	14	20	900	400	97.8
7	150	159*6	14	20	900	400	101.5
8	150	168*8	14	22	900	400	118.1
9	150	180*8	15	23	1000	400	144.0
10	175	194*8	15	23	1000	450	162.4
11	175	203*8	15	23	1100	450	181.8
12	200	219*8	16	24	1100	500	213.3
13	225	245*8	16	24	1200	500	256.8
14	250	273*8	16	24	1200	600	305.1
15	275	299*8	17	25	1300	600	370.7
16	300	325*8	17	25	1400	700	448.6
17	325	351*8	17	25	1500	700	507.6
18	350	377*10	17	27	1600	800	646.0
19	375	402*10	17	27	1700	800	719.0
20	400	480*10	18	28	1700	900	825.3
21	425	450*10	18	28	1800	900	908.7
22	450	480*10	18	28	1900	1000	1045.4
23	475	500*10	18	28	2000	1100	1164.4
24	500	530*10	19	29	2100	1200	1365.6
25	550	600*10	19	29	2300	1300	1697.9
26	600	630*10	19	29	2500	1400	1932.8
27	700	720*12	20	30	2600	1500	2410.3
28	800	820*12	20	32	3000	1600	3303.8
29	900	920*12	20	32	3200	1700	3965.8
30	1000	1050*12	20	32	3600	1800	5167.8