CN101899668A - Acid-washing method for internal surfaces of metal capillary tubes - Google Patents
Acid-washing method for internal surfaces of metal capillary tubes Download PDFInfo
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- CN101899668A CN101899668A CN 201010243444 CN201010243444A CN101899668A CN 101899668 A CN101899668 A CN 101899668A CN 201010243444 CN201010243444 CN 201010243444 CN 201010243444 A CN201010243444 A CN 201010243444A CN 101899668 A CN101899668 A CN 101899668A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 151
- 239000002184 metal Substances 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 81
- 238000005406 washing Methods 0.000 title claims abstract description 49
- 239000002253 acid Substances 0.000 claims abstract description 58
- 230000008569 process Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000005554 pickling Methods 0.000 claims description 160
- 235000021110 pickles Nutrition 0.000 claims description 57
- 238000004140 cleaning Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 15
- 239000010936 titanium Substances 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000000741 silica gel Substances 0.000 claims description 13
- 229910002027 silica gel Inorganic materials 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 9
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 239000006210 lotion Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 238000009966 trimming Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
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Abstract
The invention discloses an acid-washing method for internal surfaces of metal capillary tubes, which comprises the following steps of: 1, the trimming and fixing of tubes to be acid-washed; 2, tube insertion; and 3, acid washing, wherein in the trimming and fixing of the tubes to be acid-washed, bottom ends of a plurality of upright metal capillary tubes to be acid-washed are aligned, and lower parts of the upright metal capillary tubes to be acid-washed are hooped tightly by a sealing washer 1 to form an upright metal capillary tube bundle; in the process of tube insertion, the sealing washer 1 is ensured to be always fixed to the lower part of the metal capillary tube bundle, and the peripheral outer wall of the metal capillary tube bundle is always in close contact with the inner wall of a vertical acid-washing cylinder; and in the acid washing process, after the plurality of metal capillary tubes to be acid-washed are immersed into acid-washing liquid completely, the acid-washing process of the internal surfaces of the metal capillary tubes to be acid-washed is completed by the conventional acid-washing method. The acid-washing method has the advantages of novel and reasonable design, low invested cost, simple acid-washing steps, convenient realization, good acid-washing effect and capability of realizing the acid-washing process of the metal capillary tubes of which the inner diameters are less than or equal to 2 millimeters simply and conveniently and realizing the acid-washing process of the internal surfaces of the plurality of metal capillary tubes at one time simultaneously.
Description
Technical field
The present invention relates to a kind of surface treatment method of metal pipe material, especially relate to a kind of acid-washing method for internal surfaces of metal capillary tubes.
Background technology
Metal pipe material generally all needs through surface acid-washing in process of manufacture or before finished product dispatches from the factory, and the pickling process in the tubing course of processing is arranged in before and after the intermediate heat treatment (or claiming annealing) usually.Wherein, the main purpose of pickling is to remove the zone of oxidation that produces in the course of processing before the thermal treatment, plays the effect of oil removing simultaneously; Pickling after the thermal treatment mainly in order to remove the zone of oxidation that heat treatment stages generates, avoids oxide inclusion to be present in the central pipe performance that influences of following process.And the finished product pickling is generally bright dipped finish, and purpose is to improve the surface quality of tubing.
For the tubing of internal diameter more than 2mm, the surface tension effects influence is small, and acid solution can flow in tubing smoothly, realizes acid cleaning process; But when pipe internal diameter during less than 2mm, the surface tension of liquid effect obviously strengthens, acid solution is difficult in the pipe and flows, maybe can't flow into tubing inside, reason is can form a upper layer when acid solution contacts with the tubing internal gas, and the molecular ratio liquid internal that is in the fluid surface layer is sparse, so they are subjected to the effect of the power of directional liquid inside, make fluid surface have tendencies toward shrinkage; Simultaneously, be subjected to the influence of force of cohesion between fluid molecule, make liquid level shrink automatically, thereby make acid solution dwindle its surface area as much as possible, do not flow into capillary tubes inside, thereby make pickling to realize.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, a kind of acid-washing method for internal surfaces of metal capillary tubes is provided, the acid cleaning process that its modern design rationally, input cost is low, acid pickling step is simple and it is convenient to realize, pickling effect is good, the easy realization internal diameter of energy is less than or equal to the metal capillary tubes of 2mm, the while can realize once simultaneously the internal surface of many metal capillary tubes being carried out the acid cleaning process of pickling.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of acid-washing method for internal surfaces of metal capillary tubes is characterized in that this method may further comprise the steps:
201, intubate: with the bundle of metal capillary described in the step 1 from top to bottom straight cutting go into inside and pickle solution is housed and is in the vertical pickling tube of horizontal positioned, contact with the pickle solution of adorning in the vertical pickling tube until described metal capillary bundle bottom; Cylindrical drum and its inner chamber height that described vertical pickling tube is a upper opening are not less than the height for the treatment of the acid-washed metal capillary tubes, and the external diameter of described seal washer one is identical with the internal diameter of vertical pickling tube; Described pickle solution is to treat the generic acid washing lotion that the used material of acid-washed metal capillary tubes is carried out pickling;
202, the short period of time stops: when described metal capillary bundle bottom contacts with the pickle solution of adorning in the vertical pickling tube, stop intubate and stop t proceeding intubate after second again, the time t that is stopped treats the inner needed time of acid-washed metal capillary tubes for entering according to the described pickle solution of capillarity second;
203, pressure pipe: wait to stop t after second, adopt pressing plate described metal capillary Shu Chuizhi to be pressed in the vertical pickling tube more from top to bottom, all immerse fully in the pickle solution of being adorned in the vertical pickling tube until the many described acid-washed metal capillary tubes for the treatment of; And in the pressure pipe process, should guarantee seal washer one be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube all the time;
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: treat described in the step 1 that the acid-washed metal capillary tubes is the metal capillary tubes of internal diameter≤2mm.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: seal washer described in the step 1 one is made by spongy rubber.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: the silica gel sealing pad of seal washer one for being made by silica gel described in the step 1.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes, it is characterized in that: described in the step 1 pass through seal washer one-to-many root treat the bottom of acid-washed metal capillary tubes carry out lock ring fixing after, also need adopt more than two pairs of seal washer to treat that the top of acid-washed metal capillary tubes carries out lock ring and fix; The external diameter of described seal washer two is identical with the internal diameter of vertical pickling tube.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes, it is characterized in that: after acid cleaning process described in the step 3 finishes, to extract in the described metal capillary bundle free-standing pickling tube and, according to step 2 to intubate described in the step 3 and acid washing method described metal capillary bundle be repeated a pickling again after its inversion.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: the volume V of the pickle solution of adorning in the vertical pickling tube described in the step 201
0〉=sh-V
1, s is the cross-sectional area of the inner chamber of vertical pickling tube in the formula, h is a height for the treatment of the acid-washed metal capillary tubes, V
1Be the many cumulative volumes for the treatment of the acid-washed metal capillary tubes.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes, it is characterized in that: the pressing plate described in the step 203 is the baffle plate that presses down that top is provided with handle, the described baffle plate that presses down is the internal diameter that circular slab and its diameter are not less than vertical pickling tube, and the vertical pickling tube described in the step 201 lies in a horizontal plane on the acid solution recovering tray.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: the vertical pickling tube described in the step 201 is the PVC plastic barrel.
The acid-washing method for internal surfaces of above-mentioned a kind of metal capillary tubes is characterized in that: the acid-washed metal capillary tubes for the treatment of described in the step 1 is pure titanium pipe, titanium alloy pipe or magnesium alloy pipe, when the short period of time stops in the step 202, and time t=2～3 that stopped second.
The present invention compared with prior art has the following advantages:
1, used pickler is simple in structure, processing and fabricating is easy and input cost is low, uses easy and simple to handle.
2, acid washing method is simple and easy to operate, only needs to treat that acid-washed metal capillary bundle bottom fix the vertical pickling tube of insertion inside, back with seal washer and carries out pickling and get final product, and used pickle solution is all identical with conventional acid cleaning process with acid washing method and pickling time.
3, reasonable in design, change the horizontal pickling tank of tradition into vertical pickling tube, cooperate the silica gel sealing pad, acting in conjunction by liquid pressure and capillarity, force acid solution to enter metal capillary tubes inside, finish acid cleaning process, in the acid cleaning process, be fixed on the silica gel sealing pad for the treatment of pickling tubing head (being top) and play fixed action, be fixed on the silica gel sealing pad for the treatment of pickling tubing afterbody (being the bottom) and play sealing and fixed action (it is at first with treating pickling tubing intrusion acid solution).Particularly: utilization of the present invention is fixed on that the silica gel sealing pad for the treatment of pickling tubing afterbody is fixedly treated pickling tubing and in conjunction with capillarity, (specifically being under the pressure effect that presses down baffle plate) under external force, pickle solution in the pickling tube is pressed into treats acid-washed metal capillary tubes inside, finish acid cleaning process.Compare with traditional pickling mode, the present invention changes horizontal pickling tank into vertical pickling tube, by being enclosed within the silica gel sealing pad restriction acid solution flow direction for the treatment of pickling tubing end and pickling tube uniform internal diameter, a branch of many metal capillary bundles for the treatment of pickling are pushed in the middle of sour, in conjunction with capillarity, acid solution is entered in the kapillary, realize the internal surface pickling.Its principle is: be enclosed within tubing to be washed bottom and limited the flow direction of pickle solution with the silica gel sealing pad of vertical pickling tube uniform internal diameter, apply a thrust on tubing top, force acid solution to flow into and treat pickling tubing inside; In addition, because the existence of capillarity, pipe internal skin acid solution can impose a pulling force to lower floor's acid solution, and acid solution is risen along capillary wall, when treating that pickling tubing continues to be subjected to the pushing effect immersion of external force, makes the interior acid solution of pipe continue to rise the cleaning pipe material inner wall.Therefore, under the acting in conjunction of these two kinds of conditions, make acid solution enter metal capillary tubes inside, finish acid cleaning process.
4, pickling effect is good, can realize that simple, conveniently internal diameter is less than or equal to the acid cleaning process of the metal capillary tubes of 2mm.
5, be fixed as a metal tube bank owing to will treat the acid-washed metal capillary tubes by the silica gel sealing pad, thereby can realize once simultaneously the internal surface of many metal capillary tubes being carried out the acid cleaning process of pickling.
In sum, the acid cleaning process that the present invention's modern design rationally, input cost is low, acid pickling step is simple and it is convenient to realize, pickling effect is good, the easy realization internal diameter of energy is less than or equal to the metal capillary tubes of 2mm, the while can realize once simultaneously the internal surface of many metal capillary tubes being carried out the acid cleaning process of pickling.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a user mode reference drawing of the present invention.
Fig. 2 is the used structural representation that presses down baffle plate of the present invention.
Fig. 3 is an acid washing method schema of the present invention.
Description of reference numerals:
1-treats the acid-washed metal capillary tubes; 2-seal washer one; The vertical pickling tube of 3-;
4-seal washer two; The 5-handle; 6-acid solution recovering tray;
7-presses down baffle plate.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the acid-washing method for internal surfaces of a kind of metal capillary tubes of the present invention may further comprise the steps:
Actual when carrying out pickling, the described acid-washed metal capillary tubes 1 for the treatment of is the metal capillary tubes of internal diameter≤2mm.Used seal washer 1 is made by spongy rubber.
201, intubate: with the bundle of metal capillary described in the step 1 from top to bottom straight cutting go into inside and pickle solution is housed and is in the vertical pickling tube 3 of horizontal positioned, contact with the pickle solution of adorning in the vertical pickling tube 3 until described metal capillary bundle bottom; Described vertical pickling tube 3 is not less than the height for the treatment of acid-washed metal capillary tubes 1 for the cylindrical drum of upper opening and its inner chamber height, and the external diameter of described seal washer 1 is identical with the internal diameter of vertical pickling tube 3; Described pickle solution is to treat the generic acid washing lotion that acid-washed metal capillary tubes 1 used material is carried out pickling;
202, the short period of time stops: when described metal capillary bundle bottom contacts with the pickle solution of adorning in the vertical pickling tube 3, stop intubate and stop t proceeding intubate after second again, the time t second that is stopped is for to enter the 1 inner needed time of acid-washed metal capillary tubes for the treatment of according to the described pickle solution of capillarity;
203, pressure pipe: wait to stop t after second, adopt pressing plate described metal capillary Shu Chuizhi to be pressed in the vertical pickling tube 3 more from top to bottom, all immerse fully in the pickle solution of being adorned in the vertical pickling tube 3 until the many described acid-washed metal capillary tubes 1 for the treatment of; And in the pressure pipe process, should guarantee seal washer 1 be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube 3 all the time.
In the present embodiment, treat that acid-washed metal capillary tubes 1 is pure titanium (TA2) and the tubing that is of a size of Φ 1.8 * 0.2 * 200mm, and when this tubing is carried out pickling, proportioning when at first routinely pure titanium (TA2) material being carried out pickling allotment pickle solution, selecting volume ratio herein is 3: 1: 6 nitric acid, hydrofluoric acid and the formulated pickle solution of water uniform mixing; Afterwards, after a branch of metal capillary bundle lower end of being made up of 60 TA2 tubing fixed with seal washer 1, bottom perpendicular to straight TA2 tubing in the vertical pickling tube 3 of liquid level insertion downwards of pickle solution contacts with the pickle solutions of adorning in the vertical pickling tube 3, keep 2-3 second, after treating that promptly used pickle solution enters TA2 tubing inside, adopt pressing plate to proceed pressure pipe from top to bottom again; In the pressure pipe process, should guarantee seal washer 1 be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube 3 all the time, make the pickle solution in the vertical pickling tube 3 to move up gradually by seal washer one 2 sealing and fixing effects like this along TA2 tubing, make pickle solution immerse and treat that the TA2 tubing inside of pickling is to finish the whole acid cleaning process of the TA2 tubing for the treatment of pickling, and when carrying out pickling, the TA2 tubing that the pickling time of TA2 tubing being carried out pickling according to routine is treated pickling carries out pickling, after the surface smoothness of TA2 tubing meets the demands, finish acid cleaning process.
In the present embodiment, the silica gel sealing pad of described seal washer 1 for making by silica gel, actual when carrying out pickling, the gasket that also can adopt other spongy rubber material is to metal capillary Shu Jinhang sealing and fixing.Described seal washer 1 and treat that the vertical range between acid-washed metal capillary tubes 1 bottom is 1cm ± 0.2cm, actual when carrying out pickling, also can be according to the concrete needs of reality, with seal washer 1 and treat that the vertical range between acid-washed metal capillary tubes 1 bottom adjusts accordingly, as long as guarantee that one 2 couples of metal capillary Shu Jinhang of seal washer lock ring is fixing.Described vertical pickling tube 3 is the PVC plastic barrel, in the actual mechanical process, also can select for use other material and pickle solution not to cause corrosive pickling tube as vertical pickling tube 3 to it, and should guarantee that the external diameter of seal washer 1 is identical with the internal diameter of vertical pickling tube 3.Simultaneously, actual when carrying out pickling, can also select for use and treat the conventional acid washing lotion that acid-washed metal capillary tubes 1 carries out other type of pickling and carry out pickling.
In the present embodiment, treat that acid-washed metal capillary tubes 1 is of a size of the tubing of Φ 2.0 * 0.3 * 100mm for magnesium alloy (AZ31) and its, proportioning when at first routinely magnesium alloy (AZ31) material being carried out pickling allotment pickle solution, selecting weight ratio herein is 15: 1000 oxalic acid and the formulated pickle solution of water uniform mixing; Afterwards, after a branch of metal capillary bundle lower end of being made up of 40 AZ31 tubing fixed with seal washer 1, bottom perpendicular to straight AZ31 tubing in the vertical pickling tube 3 of liquid level insertion downwards of pickle solution contacts with the pickle solutions of adorning in the vertical pickling tube 3, keep 2-3 second, after treating that promptly used pickle solution enters AZ31 tubing inside, adopt pressing plate to proceed pressure pipe from top to bottom again; In the pressure pipe process, should guarantee seal washer 1 be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube 3 all the time, make the pickle solution in the vertical pickling tube 3 to move up gradually by seal washer one 2 sealing and fixing effects like this along AZ31 tubing, make pickle solution immerse and treat that the AZ31 tubing inside of pickling is to finish the whole acid cleaning process of the AZ31 tubing for the treatment of pickling, and when carrying out pickling, the AZ31 tubing that the pickling time of AZ31 tubing being carried out pickling according to routine is treated pickling carries out pickling, after the surface smoothness of AZ31 tubing meets the demands, finish acid cleaning process.
In the present embodiment, before the intubate, by more than one 2 pairs of seal washer treat the bottom of acid-washed metal capillary tubes 1 carry out lock ring fixing after, also need adopt more than 27 pairs of seal washer to treat that the top of acid-washed metal capillary tubes 1 carries out lock ring and fix, the external diameter of described seal washer 27 is identical with the internal diameter of vertical pickling tube 3.And, after acid cleaning process finishes, after extracting in the metal capillary bundle free-standing pickling tube 3 that will form by 40 AZ31 tubing and it being inverted, according to step 2 to intubate described in the step 3 and acid washing method described metal capillary bundle is repeated a pickling again.In addition, when carrying out pickling, the volume V of the pickle solution of adorning in the described vertical pickling tube 3
0〉=sh-V
1, s is the cross-sectional area of the inner chamber of vertical pickling tube 3 in the formula, h is a height for the treatment of acid-washed metal capillary tubes 1, V
1Be the many cumulative volumes for the treatment of acid-washed metal capillary tubes 1.Actual when carrying out pickling, can vertical pickling tube 3 in the volume V of the pickle solutions of adorning
0Adjust accordingly, adorn in the pickle solution but can described metal capillary bundle should guarantee pickling the time all immerse in the vertical pickling tube 3.
In the present embodiment, when carrying out pressure pipe, the pressing plate that is adopted be top be provided with handle 5 press down baffle plate 7, the described baffle plate 7 that presses down is not less than the internal diameter of vertical pickling tube 3 for circular slab and its diameter, described vertical pickling tube 3 lies in a horizontal plane on the acid solution recovering tray 6.Described press down baffle plate 7 under be provided with in a vertical straight inner bracing piece and the pressure pipe process, vertical straight inner bracing piece is inserted described metal capillary bundle inside, thereby by seal washer 1 and 27 pairs of described metal capillary Shu Jinhang lock rings of seal washer fixedly the time, should suitably leave the insertion space of described vertical straight inner bracing piece, the insertion space of being left simultaneously should not crossed main point and guarantee described metal capillary Shu Jinhang lock ring.The thickness of described seal washer 1 is 10mm ± 2mm, and the footpath of seal washer 1 wide be 10mm ± 2mm; Described seal washer 27 and treat that the vertical range between acid-washed metal capillary tubes 1 top is 1cm ± 0.2cm.During actually operating, can also be to wide the adjusting accordingly of thickness and footpath of seal washer 1 and seal washer 27.
In the present embodiment, treat that acid-washed metal capillary tubes 1 is of a size of the tubing of Φ 1.5 * 0.15 * 500mm for titanium alloy (TLM) and its, proportioning when at first routinely titanium alloy (TLM) material being carried out pickling allotment pickle solution, selecting volume herein frequently is 4: 1: 5 nitric acid, hydrofluoric acid and the formulated pickle solution of water uniform mixing; Afterwards, after a branch of metal capillary bundle lower end of being made up of 100 TLM tubing fixed with seal washer 1, contact with the pickle solution of adorning in the vertical pickling tube 3 until the bottom of TLM tubing in the vertical pickling tube 3 of liquid level insertion downwards perpendicular to pickle solution, keep 2-3 second, after treating that promptly used pickle solution enters TLM tubing inside, adopt pressing plate to proceed pressure pipe from top to bottom again; In the pressure pipe process, should guarantee seal washer 1 be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube 3 all the time, make the pickle solution in the vertical pickling tube 3 to move up gradually by seal washer one 2 sealing and fixing effects like this along TLM tubing, make pickle solution immerse and treat that the TLM tubing inside of pickling is to finish the whole acid cleaning process of the AZ31 tubing for the treatment of pickling, and when carrying out pickling, the TLM tubing that the pickling time of TLM tubing being carried out pickling according to routine is treated pickling carries out pickling, after the surface smoothness of TLM tubing meets the demands, finish acid cleaning process.
In the present embodiment, before the intubate, by more than one 2 pairs of seal washer treat the bottom of acid-washed metal capillary tubes 1 carry out lock ring fixing after, also need adopt more than 27 pairs of seal washer to treat that the top of acid-washed metal capillary tubes 1 carries out lock ring and fix, the external diameter of described seal washer 27 is identical with the internal diameter of vertical pickling tube 3.And, after acid cleaning process finishes, after extracting in the metal capillary bundle free-standing pickling tube 3 that will form by 40 AZ31 tubing and it being inverted, according to step 2 to intubate described in the step 3 and acid washing method described metal capillary bundle is repeated a pickling again.In addition, when carrying out pickling, the volume V of the pickle solution of adorning in the described vertical pickling tube 3
0〉=sh-V
1, s is the cross-sectional area of the inner chamber of vertical pickling tube 3 in the formula, h is a height for the treatment of acid-washed metal capillary tubes 1, V
1Be the many cumulative volumes for the treatment of acid-washed metal capillary tubes 1.Actual when carrying out pickling, can vertical pickling tube 3 in the volume V of the pickle solutions of adorning
0Adjust accordingly, adorn in the pickle solution but can described metal capillary bundle should guarantee pickling the time all immerse in the vertical pickling tube 3.
In the actual use, can adopt the present invention that the acid-washed metal capillary tubes 1 for the treatment of of other material is carried out pickling, only need during pickling used pickle solution and pickling time adjusted and get final product.Simultaneously, in the intubate process, when described metal capillary bundle bottom contacts with the pickle solution of adorning in the vertical pickling tube 3, stop intubate and enter treating that the 1 inner needed time of acid-washed metal capillary tubes determine to stop t second, stop t and proceed intubate after second again according to the described pickle solution of capillarity.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (10)
1. the acid-washing method for internal surfaces of a metal capillary tubes is characterized in that this method may further comprise the steps:
Step 1, treat pickling tubing arrangement and fixing: will the many axial alignment of acid-washed metal capillary tubes (1) bottom and the bottom for the treatment of undertaken forming an axial metal capillary bundle after lock ring fixes by seal washer one (2); Many material, structure and the sizes for the treatment of acid-washed metal capillary tubes (1) are all identical;
Step 2, intubate, its intubate process is as follows:
201, intubate: with the bundle of metal capillary described in the step 1 from top to bottom straight cutting go into inside and pickle solution is housed and is in the vertical pickling tube (3) of horizontal positioned, contact with the pickle solution of adorning in the vertical pickling tube (3) until described metal capillary bundle bottom; Described vertical pickling tube (3) is not less than the height for the treatment of acid-washed metal capillary tubes (1) for the cylindrical drum of upper opening and its inner chamber height, and the external diameter of described seal washer one (2) is identical with the internal diameter of vertical pickling tube (3); Described pickle solution is for treating the generic acid washing lotion that the used material of acid-washed metal capillary tubes (1) is carried out pickling;
202, the short period of time stops: when described metal capillary bundle bottom contacts with the pickle solution of adorning in the vertical pickling tube (3), stop intubate and stop t proceeding intubate after second again, the time t second that is stopped is for to enter the inner needed time of acid-washed metal capillary tubes (1) for the treatment of according to the described pickle solution of capillarity;
203, pressure pipe: wait to stop t after second, adopt pressing plate described metal capillary Shu Chuizhi to be pressed in the vertical pickling tube (3) more from top to bottom, all immerse fully in the pickle solution of being adorned in the vertical pickling tube (3) until the many described acid-washed metal capillary tubes (1) for the treatment of; And in the pressure pipe process, should guarantee seal washer one (2) be fixed on described metal capillary bundle bottom and its all the time around outer wall closely contact with the inwall of vertical pickling tube (3) all the time;
Step 3, pickling: after treating that many described in the step 203 treat that acid-washed metal capillary tubes (1) all immerses in the pickle solution fully, treat the method that the used material of acid-washed metal capillary tubes (1) is carried out pickling according to routine, finish the acid cleaning process for the treatment of acid-washed metal capillary tubes (1) internal surface.
2. according to the acid-washing method for internal surfaces of the described a kind of metal capillary tubes of claim 1, it is characterized in that: treat described in the step 1 that acid-washed metal capillary tubes (1) is the metal capillary tubes of internal diameter≤2mm.
3. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: seal washer described in the step 1 one (2) is made by spongy rubber.
4. according to the acid-washing method for internal surfaces of the described a kind of metal capillary tubes of claim 3, it is characterized in that: the silica gel sealing pad of seal washer one (2) described in the step 1 for making by silica gel.
5. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: described in the step 1 pass through seal washer one (2) to many bottoms for the treatment of acid-washed metal capillary tubes (1) carry out lock ring fixing after, also need adopt seal washer two (4) that lock ring is carried out on many tops for the treatment of acid-washed metal capillary tubes (1) and fix; The external diameter of described seal washer two (4) is identical with the internal diameter of vertical pickling tube (3).
6. according to the acid-washing method for internal surfaces of the described a kind of metal capillary tubes of claim 5, it is characterized in that: after acid cleaning process described in the step 3 finishes, to extract in the described metal capillary bundle free-standing pickling tube (3) and, according to step 2 to intubate described in the step 3 and acid washing method described metal capillary bundle be repeated a pickling again after its inversion.
7. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: the volume V of the pickle solution of adorning in the vertical pickling tube (3) described in the step 201
0〉=sh-V
1, s is the cross-sectional area of the inner chamber of vertical pickling tube (3) in the formula, h is for treating the height of acid-washed metal capillary tubes (1), V
1Be the many cumulative volumes for the treatment of acid-washed metal capillary tubes (1).
8. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: the pressing plate described in the step 203 be top be provided with handle (5) press down baffle plate (7), the described baffle plate (7) that presses down is the internal diameter that circular slab and its diameter are not less than vertical pickling tube (3), and the vertical pickling tube (3) described in the step 201 lies in a horizontal plane on the acid solution recovering tray (6).
9. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: the vertical pickling tube (3) described in the step 201 is the PVC plastic barrel.
10. according to the acid-washing method for internal surfaces of claim 1 or 2 described a kind of metal capillary tubes, it is characterized in that: the acid-washed metal capillary tubes (1) for the treatment of described in the step 1 is pure titanium pipe, titanium alloy pipe or magnesium alloy pipe, when the short period of time stops in the step 202, time t=2～3 that stopped second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010243444XA CN101899668B (en) | 2010-07-30 | 2010-07-30 | Acid-washing method for internal surfaces of metal capillary tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010243444XA CN101899668B (en) | 2010-07-30 | 2010-07-30 | Acid-washing method for internal surfaces of metal capillary tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899668A true CN101899668A (en) | 2010-12-01 |
| CN101899668B CN101899668B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010243444XA Expired - Fee Related CN101899668B (en) | 2010-07-30 | 2010-07-30 | Acid-washing method for internal surfaces of metal capillary tubes |
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| CN (1) | CN101899668B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386612A (en) * | 2013-08-06 | 2013-11-13 | 宝鸡力兴钛业科技有限公司 | Processing method for high-precision Ti capillary pipe fitting and pipe grinding assembly used in processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51105927A (en) * | 1975-03-14 | 1976-09-20 | Kobe Steel Ltd | |
| CN85105469A (en) * | 1985-07-08 | 1987-01-14 | 隆察股份公司 | The acid washing method of workpiece and equipment in the tubulation |
| US5103847A (en) * | 1990-11-13 | 1992-04-14 | Westinghouse Electric Corp. | Device for supporting tube bundles for cleaning |
| US5549759A (en) * | 1992-03-09 | 1996-08-27 | Niagara Tube Washing Systems Ab | Method and apparatus for cleaning cylindrical components which are transversely rotated in a drum during liquid treatment |
| WO2004043620A1 (en) * | 2002-11-14 | 2004-05-27 | Outokumpu Oyj | Arrangement for treating the inner surface of a metal tube |
-
2010
- 2010-07-30 CN CN201010243444XA patent/CN101899668B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51105927A (en) * | 1975-03-14 | 1976-09-20 | Kobe Steel Ltd | |
| CN85105469A (en) * | 1985-07-08 | 1987-01-14 | 隆察股份公司 | The acid washing method of workpiece and equipment in the tubulation |
| US5103847A (en) * | 1990-11-13 | 1992-04-14 | Westinghouse Electric Corp. | Device for supporting tube bundles for cleaning |
| US5549759A (en) * | 1992-03-09 | 1996-08-27 | Niagara Tube Washing Systems Ab | Method and apparatus for cleaning cylindrical components which are transversely rotated in a drum during liquid treatment |
| WO2004043620A1 (en) * | 2002-11-14 | 2004-05-27 | Outokumpu Oyj | Arrangement for treating the inner surface of a metal tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386612A (en) * | 2013-08-06 | 2013-11-13 | 宝鸡力兴钛业科技有限公司 | Processing method for high-precision Ti capillary pipe fitting and pipe grinding assembly used in processing method |
| CN103386612B (en) * | 2013-08-06 | 2015-11-25 | 宝鸡力兴钛业科技有限公司 | A kind of processing method of high precision titanium capillary tube member and the mill pipe assembly for the method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101899668B (en) | 2012-01-04 |
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