CN1161895A - Technology for inlaying aluminium alloy lining to hydro-cylinder - Google Patents
Technology for inlaying aluminium alloy lining to hydro-cylinder Download PDFInfo
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- CN1161895A CN1161895A CN 97101551 CN97101551A CN1161895A CN 1161895 A CN1161895 A CN 1161895A CN 97101551 CN97101551 CN 97101551 CN 97101551 A CN97101551 A CN 97101551A CN 1161895 A CN1161895 A CN 1161895A
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- aluminium alloy
- oil cylinder
- wall pipe
- light wall
- hardening liquid
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Abstract
The inlaying process of aluminium alloy inside lining for repairing waste or inactive hydraulic cylinder in coal mine support installation is characterized by integrating machine design, manufacture and electrochemical treatment of metal surface into one body to inlay aluminium alloy inside lining on to the internal surface of waste and inactive hydraulic cylinder instead of such repairing processes of copperplating and inlaying stainless steel cover. Said invented process is simple, low in cost, corrosion-resistant and wear-proof.
Description
Technology for inlaying aluminium alloy lining to hydro-cylinder of the present invention belongs to the category of Machine Design, manufacturing and metal material processing and many metallic interior surface electrochemical treatment, is mainly used in the products production and the reparation of hydraulic ram in hydraulic prop in the support apparatus in coal mine, hydraulic support and the comprehensive winning machine.The hydraulic ram system that also can be used for mine, metallurgy, oil, chemical industry, automobile, engineering, agricultural machinery industry.
Present domestic widely used DZ type hydraulic prop oil cylinder because the underground work environment is abominable, uses that the copper plate of oil cylinder inner surface local pit will occur, peel off behind the 1-2, causes leakage, thereby the hydraulic prop oil cylinder was lost efficacy or scraps.From the metallic corrosion Analysis on Mechanism, the major cause of pit occurs, peeling off is: the electropotential of copper plate is higher than the electropotential of metallic matrix, so first corroding metal matrix then damages coating.Lost efficacy or the oil cylinder scrapped has 1,500,000 approximately in the whole nation according to incompletely statistics, these oil cylinders if can be repaired, and can be economize on the use of funds hundred million yuan of 5-6 of country.
For addressing this problem, surplus in the of ten over year multiple recovery technique scheme is disclosed successively, be coated with reinforcing method as metal powder, brush plating method, nylon spraying method etc., because of poor performance, quality is low, unreliable, progressively be eliminated, what mainly used in recent years is the restorative procedure of edge iron sheet, stainless steel sleeve.Be difficult to large-scale popularization uses but still there are following three shortcomings in this method.
1, cost height: need to adopt the stainless steel sheet of import (Japan, Korea S) 0.5-0.6mm, the price height, and need through cut out, complicated technological processs such as pipe crimping, butt welding, roll extrusion, so cost is very high.
Therefore easily 2, not wear-resisting: the hardness of stainless steel own is low, only is HV120-180, scratch or scuffing of cylinder bore and leakage was lost efficacy oil cylinder.
3, easily loosening: because stainless steel elasticity is bigger, therefore easily resilience after roll extrusion is difficult for and oil cylinder inner wall towel closes closely, easily loosening the inefficacy.
Therefore a kind of cost of present domestic urgent need is low, the hydraulic prop oil cylinder recovery technique that the life-span is long, performance is good.
Technology for inlaying aluminium alloy lining to hydro-cylinder purpose of the present invention is to disclose a kind of hydraulic prop hydraulic ram recovery technique scheme that cost is low, the life-span is long, performance is good that Machine Design is an one that collects.Hydraulic ram embedded with aluminum alloy of the present invention lining technology is characterized in that it being that a kind of to collect Machine Design, machinofacture, metal material surface electrochemical treatment be the comprehensive complete set technology scheme of one, comprising:
The design of I, material and selection
According to the oil cylinder of different size, select the aluminium alloy moulding light wall pipe of different model, its component concentration is (weight percent): aluminium (96-98), magnesium (0.1-1.2), silicon (0.2-1.0), iron (0.4-0.8), all the other are copper, zinc, titanium, manganese, vanadium (0.1-0.4) altogether.
The preparation of II, hardening liquid
The hardening liquid component is: distilled water+sulfuric acid+oxalic acid
The hardening liquid proportioning is (by weight percentage): distilled water (55-98), and sulfuric acid (1-40),
Oxalic acid (0.2-5)
Hardening parameter: operating voltage 5-30V
Current density 0.5-5A/dm
2
Setting time 0.5-10h
Stiffening temperature-20 is to+30 ℃
III, technical process
A, the oil cylinder that will scrap are at first proofreaied and correct, and make nonstraightness less than 0.60mm;
B, then at the lathe oil cylinder frame mouth of getting on the bus, two ends are lead angle by drawing;
C, on deep hole boring machine the heavy boring internal diameter, roughness is
D, will select the aluminium alloy light wall pipe of moulding to insert in the oil cylinder, and the riveting limit;
E, roll forming on deep hole boring machine combine with making aluminium alloy light wall pipe and oil cylinder inner wall close and firm, and the wall thickness after the calendering of aluminium alloy light wall pipe is 0.5-1.5mm;
F, deburring, water cleans;
G, in 10% the NaOH aqueous solution, activate 20 to+30 ℃ of temperature, soak time 3 seconds-1.5 minutes;
H, carry out the aluminum alloy surface electrochemical treatment in the hardening liquid for preparing in advance, curing condition and parameter are: direct supply voltage 5-30V, current density: 0.5-5A/dm
2, setting time 0.5-10h, stiffening temperature :-20--+30 ℃;
Then water cleans and can finish.
Technology for inlaying aluminium alloy lining to hydro-cylinder of the present invention can because the electropotential of aluminium alloy lining is lower than former oil cylinder matrix, thereby at first have been protected the oil cylinder matrix with the oil cylinder reparation of losing efficacy or scrapping.And the etch resistant layer of aluminum alloy surface formation one deck stable performance of process hardening treatment, corrosion phenomenon did not appear in 360 days in immersion in emulsion neutralizes the aqueous solution that contains trace acid, alkali, salt medium, tried out under mine and did not have any corrosion phenomenon in 2 years yet.
Aluminium alloy lining surface hardness through hardening treatment reaches HV350-450 simultaneously, the hardness of former stainless steel lined is HV120-180, through national support apparatus in coal mine quality test center, add 500g at the oil cylinder epicoele, the coal dust of Ф 0.2mm, it is qualified fully to repeat to add the unloaded wearing test 2000 times, and the aluminium alloy lining surface does not have scratch and cut, meets the MT112-93 standard.
Technology for inlaying aluminium alloy lining to hydro-cylinder of the present invention in addition can replace the copper-plating technique in the existing oil cylinder production, and pit or peeling phenomenon appear in the copper plate that has thoroughly solved oil cylinder inner wall, have prolonged the work-ing life of oil cylinder greatly.
In sum, the present invention not only technology is simple, and cost is low, and long service life, and the hardness height is corrosion-resistant, wear-resistant, the more important thing is to the Ministry of Coal Industry's development " water column " and has opened up a new way, has established solid technical foundation.So-called " water column " is exactly to be the hydraulic prop of working medium with water, and the used working medium of used hydraulic prop is an emulsion, and this emulsion enters the severe contamination that mine water resource is caused in the down-hole.
Most preferred embodiment
With hydraulic prop oil cylinder Ф 100 holes is example, enumerates following three example explanations.
Embodiment 1
Drop into 500 of Huozhou Mining Administration's aluminium alloy lining oil cylinders June nineteen ninety-five, inspecting 5 in December, 1996 by random samples, all are normal.Its liner inlay and hardening process as follows:
A, oil cylinder is proofreaied and correct, nonstraightness is not more than 0.60mm;
B, at the lathe oil cylinder frame mouth of getting on the bus, 15 ° of angles are led at two ends, apart from the handgrip body end 200mm overall width 25mm of place, the degree of depth is seen till the circle;
C, in the deep hole boring heavy boring cylinder bore to Ф 101.5
+ 0 + 0.03, roughness
D, the molded aluminum alloy light wall pipe is inserted in the oil cylinder and on 15 ° of limits of handgrip body end riveting; Al alloy component is (weight percent): magnesium 0.2-0.4, and silicon 0.4-0.8, iron 0.7, zinc 0.25, chromium 0.35, titanium 0.15 manganese 0.15, all the other are aluminium;
E, with milled head the aluminium alloy light wall pipe is being pressed on oil cylinder inner wall on the deep hole boring machine, the back endoporus that is shaped is Ф 100
+ 0 + 0.016, roughness
F, deburring;
G, water clean;
H, in 10% the NaOH aqueous solution activation 5 seconds;
I, sclerosis, the proportioning of hardening liquid are distilled water 75%, sulfuric acid 24%, oxalic acid 1%, operating voltage 15V during sclerosis, current density 1.5A/dm
2, setting time 2 hours;
J, water clean.
Embodiment 2
Drop into 300 of Xingtai Mining Industry Bureau's inlaying aluminium alloy lining oil cylinders August nineteen ninety-five, underground trials, 5 inspections of 1996.11 sampling, normal, its technological process is as follows:
A, oil cylinder is proofreaied and correct, nonstraightness is not more than 0.60mm;
B, on lathe the vehicle frame mouth, 15 ° of angles are led at two ends, carry the end 200mm overall width 25mm of place apart from handgrip, the degree of depth see justify till;
C, on deep hole boring machine the heavy boring cylinder bore to Ф 102
+ 0 + 0.03, roughness
D, the molded aluminum alloy light wall pipe is inserted in the oil cylinder and on 15 ° of limits of handgrip body end riveting, al alloy component is (weight percent): magnesium 0.3-0.6, and silicon 0.3-0.6, iron 0.5, zinc, chromium, titanium, vanadium, manganese etc. are less than 0.1, and all the other are aluminium;
E, with milled head the aluminium alloy light wall pipe is being pressed on oil cylinder inner wall on the deep hole boring machine, the back endoporus that is shaped is Ф 100
+ 0 + 0.016, roughness
F, deburring;
G, water clean;
H, in 10% the NaOH aqueous solution activation 3 seconds;
I, sclerosis, the proportioning of hardening liquid are distilled water 80%, sulfuric acid 18%, oxalic acid 2% curing voltage 30V, current density 2.5A/dm
2Setting time 1.5 hours;
J, water clean.
Embodiment 3
Send December nineteen ninety-five the Taiyuan Dongshan Coal Mine 400 inlaying aluminium alloy lining oil cylinders, drop into the down-hole formula and test, inspect 5 in December, 1996 by random samples, and normal, its technological process is as follows:
A, oil cylinder is proofreaied and correct, nonstraightness is not more than 0.60mm;
B, getting on the bus at lathe adds mouth, and 15 ° of angles are led at two ends, and apart from the handgrip body end 200mm overall width 25mm of place, the degree of depth is seen till the circle;
C, on deep hole boring machine heavy boring cylinder bore to 102.5
+ 0 + 0.03, roughness
D, the molded aluminum alloy light wall pipe is inserted in the oil cylinder and on 15 ° of limits of handgrip body end riveting, al alloy component is (weight percent): magnesium 0.4-0.8, iron are less than 0.35, and silicon 0.2-0.6, copper, chromium, zinc titanium, manganese are less than 0.1, and all the other are aluminium;
E, with milled head the aluminium alloy light wall pipe is being pressed on cylinder bore on the deep hole boring machine, the back endoporus that is shaped is Ф 100
+ 0 + 0.016, roughness is
F, deburring;
G, water clean;
H, in 10% the NaOH aqueous solution activation 20 seconds;
I, sclerosis, the proportioning of hardening liquid is: distilled water 85%, sulfuric acid 13%, oxalic acid 2%, curing voltage 20V, current density 2A/dm
2, setting time 2 hours;
J, water clean.
Claims (1)
1, a kind of technology for inlaying aluminium alloy lining to hydro-cylinder is characterized in that it being that a kind of to collect Machine Design, machinofacture, metallic substance internal surface electrochemical treatment be the comprehensive complete set technology of one, comprising:
The design of I, material and selection
According to the oil cylinder of different size, select the aluminium alloy moulding light wall pipe of different model, its component concentration is (weight percent): aluminium (96-98), magnesium (0.1-1.2), silicon (0.2-1.0), iron (0.4-0.8), all the other are copper, zinc, titanium, manganese, vanadium (0.1-0.4) altogether;
The preparation of II, hardening liquid
The hardening liquid component is: distilled water+sulfuric acid+oxalic acid
The hardening liquid proportioning is (by weight percentage): distilled water (55-98), and sulfuric acid (1-40),
Oxalic acid (0.2-5);
Hardening parameter: operating voltage 5-30V
Current density 0.5-10A/dm
2
Setting time 0.5-10h
Stiffening temperature-20 is to+30 ℃
III, technical process
A, the oil cylinder that will scrap are at first proofreaied and correct, and make nonstraightness less than 0.60mm;
B, then at the lathe oil cylinder frame mouth of getting on the bus, two ends are lead angle by drawing;
C, on deep hole boring machine the heavy boring internal diameter, roughness is
D, will select the aluminium alloy light wall pipe of moulding to insert in the oil cylinder, and the riveting limit;
E, roll forming on deep hole boring machine combine with making aluminium alloy light wall pipe and oil cylinder inner wall close and firm, and the wall thickness after the calendering of aluminium alloy light wall pipe is 0.5-1.5mm;
F, deburring, water cleans;
G, in 10% the NaOH aqueous solution, activate, temperature 20-30 ℃, soak time 3 seconds-1.5 minutes;
H, carry out the aluminum alloy surface electrochemical treatment in the hardening liquid for preparing in advance, curing condition and parameter are: direct supply voltage 5-30V, current density: 0.5-5A/dm
2, setting time 0.5-10h, stiffening temperature :-20-is to+30 ℃;
Then water cleans and can finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97101551A CN1070401C (en) | 1997-02-14 | 1997-02-14 | Technology for inlaying aluminium alloy lining to hydro-cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97101551A CN1070401C (en) | 1997-02-14 | 1997-02-14 | Technology for inlaying aluminium alloy lining to hydro-cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1161895A true CN1161895A (en) | 1997-10-15 |
| CN1070401C CN1070401C (en) | 2001-09-05 |
Family
ID=5165817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97101551A Expired - Fee Related CN1070401C (en) | 1997-02-14 | 1997-02-14 | Technology for inlaying aluminium alloy lining to hydro-cylinder |
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| CN (1) | CN1070401C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523469A (en) * | 2017-01-04 | 2017-03-22 | 河海大学常州校区 | Composite wear-resisting cylinder barrel and preparing method thereof |
| CN106523468A (en) * | 2017-01-04 | 2017-03-22 | 河海大学常州校区 | Composite wear-resistant cylinder barrel and preparation method |
| CN106545544A (en) * | 2017-01-04 | 2017-03-29 | 河海大学常州校区 | A kind of complex abrasion-proof cylinder barrel and preparation method |
| CN106678118A (en) * | 2017-01-04 | 2017-05-17 | 河海大学常州校区 | Composite abrasion-resistant cylinder barrel and preparation method |
| CN106762952A (en) * | 2017-01-04 | 2017-05-31 | 河海大学常州校区 | A kind of complex abrasion-proof cylinder barrel and preparation method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057420A (en) * | 1991-07-27 | 1992-01-01 | 新泰市机床附件厂 | Process for restoring oil cylinder by diameter-reducing method |
| CN1036543C (en) * | 1993-12-23 | 1997-11-26 | 姜星柱 | Oil cylinder and making method thereof |
-
1997
- 1997-02-14 CN CN97101551A patent/CN1070401C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523469A (en) * | 2017-01-04 | 2017-03-22 | 河海大学常州校区 | Composite wear-resisting cylinder barrel and preparing method thereof |
| CN106523468A (en) * | 2017-01-04 | 2017-03-22 | 河海大学常州校区 | Composite wear-resistant cylinder barrel and preparation method |
| CN106545544A (en) * | 2017-01-04 | 2017-03-29 | 河海大学常州校区 | A kind of complex abrasion-proof cylinder barrel and preparation method |
| CN106678118A (en) * | 2017-01-04 | 2017-05-17 | 河海大学常州校区 | Composite abrasion-resistant cylinder barrel and preparation method |
| CN106762952A (en) * | 2017-01-04 | 2017-05-31 | 河海大学常州校区 | A kind of complex abrasion-proof cylinder barrel and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1070401C (en) | 2001-09-05 |
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