CN104400199A - Plasma cutting protection method - Google Patents
Plasma cutting protection method Download PDFInfo
- Publication number
- CN104400199A CN104400199A CN201410562234.5A CN201410562234A CN104400199A CN 104400199 A CN104400199 A CN 104400199A CN 201410562234 A CN201410562234 A CN 201410562234A CN 104400199 A CN104400199 A CN 104400199A
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- CN
- China
- Prior art keywords
- protective liquid
- protection
- plasma cutting
- cutting
- processing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a plasma cutting protection method and belongs to the technical field of hot working. The method comprises the following steps of (1) before a part is mounted onto a clamp, brushing water-based protective liquid at positions to be protected on a non-machining surface, and mounting the part and beginning to perform plasma cutting after water contained in the non-machining protective liquid is evaporated and the protective liquid is nearly solidified; (2) after the part is machined, removing protective layers formed after the water-based protective liquid is dried by using a wire brush. According to the method, the non-machining surface of the part is effectively protected, the problem that the surface of the part is damaged caused by plasma cutting is radically solved, and compared with the traditional protection method, the method has the advantages that the cost is greatly reduced, the protection effect is better, the surface of the part after cutting is no corroded or polluted, the chemical compositions of a material are not changed, and the mechanical properties are not influenced. The method is suitable for the plasma cutting, can be applied to laser cutting and other hot working protection, and is wide in application prospect with the development of the hot working technology.
Description
Technical field
The invention belongs to technical field of hot working, particularly a kind of plasma cut means of defence.
Background technology
The slag produced in plasma (space) cutting process has and very strong attaches ability, if let alone splash will be difficult to removing to part to be processed surface, the guard method of current most of plasma cut employing is all rigid protection.Namely in the middle of finished surface and non-finished surface, increase baffle plate, be splashed to non-processing on the surface by baffle slag, thus reach the object of protection.This means of defence to being processed with good economy in enormous quantities, but is processed improper for the part of multi-varieties and small-batch.Part kind is more, the baffle number also corresponding increase of needs.If the change of part machining profile greatly, then need baffle plate very accurately just can play protective action, so just considerably increase baffle plate manufacturing cost, and not accurately baffle plate cannot stop that slag splashes completely, protection is caused to be lost efficacy, a large amount of slag is attached to non-processing on the surface, the hardness of slag is high, strong adhesion, even if use polishing technology to be also difficult to remove, and need to waste more manpower and materials cost, even there is the non-finished surface of the improper damage of polishing operation, destroy the intrinsic light cleanliness of the non-finished surface of raw material, cannot recover, cause the economic loss that cannot retrieve.
Summary of the invention
For the problems referred to above, the present invention mainly solves plasma cut part (especially space feature) non-processing surfacecti proteon problem, can be applied in the part processing of any spatial form, realize non-finished surface thoroughly to protect, avoid the problem of rigid baffle high cost and protect problem not in place, realize flexible protective, be both applicable to processing in enormous quantities, be applicable to Multi-varieties and Small-batch Production too.
A kind of plasma cut means of defence of the present invention, adopts the protection realizing part in the method for non-processing surface brush painting protective liquid, carries out according to following steps:
(1) before part is installed on fixture, first the position of protection is needed to brush water base protective liquid non-finished surface; Until the evaporation of non-processing protective liquid contained humidity close to after solidifying, then mounting parts start ion cutting processing;
(2) completion of processing, removes the dried overcoat of the water base protective liquid of original brushing with wire brush.
Described water base protective liquid main material ingredient is calcium carbonate or calcium sulphate soln, and the mass ratio of calcium carbonate or calcium sulfate and water is 1:2 ~ 3.
Except calcium carbonate, other use as calcium sulfate also can be used as alternative materials, owing to only needing the function realizing protection splashing, therefore to material therefor purity without particular/special requirement, for reducing costs, use engineering construction material common on the market as chalk powder, land plaster etc.
Cutting head machine direction is the vertical centre of gyration from outside to inside, if do not adopt protection, cutting slag can splash to end face and neighbouring non-cutting surface.After brushing overcoat, slags all in process splashes and is all distributed in overcoat surface, is taken off by part, then removed by overcoat after machining.Plasma cut adds man-hour, the red heat state that slag and splashing are melting, and a part, is directly shed on ground on overcoat because itself and protective materials adhesive force are strong in splash; Another part is by the effect of jet power, and be pasted onto reluctantly on overcoat, its removal with overcoat can be removed easily.Because protective materials is calcium carbonate, becoming Powdered after drying is attached on the surface, can remove easily with wire brush, time used is little, be applicable to produced on-site, be suitable for plasma cut protection, and protective liquid main composition-calcium carbonate is with low cost, chalk powder, land plaster etc. that on market, average family finishing uses all can use.
The present invention makes the non-finished surface of part be effectively protected; completely solve the piece surface damage that plasma cut causes; compare traditional defense method and significantly reduce cost; and better protecting effect; corrosion-free and the contamination phenomenon of piece surface after cutting; material chemical composition does not change, and mechanical performance is without impact.The program is not only applicable to plasma cut, and also can be applicable to laser cutting and other hot-working protection, along with the development of hot-working process, its application prospect is by boundless.
Accompanying drawing explanation
Fig. 1 is embodiment 1 processing parts schematic diagram, and wherein 1 is finished surface (upper surface), and 2 is non-finished surface (accessory inner surface).
Detailed description of the invention
Embodiment 1
For part shown in Fig. 1, this part finished surface is circular upper face, machine direction is the vertical part centre of gyration, before part is installed on fixture, first by non-finished surface (diagram part inwall), (described water base protective liquid main material ingredient is calcium carbonate or calcium sulphate soln, and the mass ratio of calcium carbonate or calcium sulfate and water is 1:2 ~ 3 to need the position of protection to brush water base protective liquid; Namely white portion is illustrated), treat that non-processing surfacecti proteon liquid moisture evaporates, surface is close to after solidifying, get final product mounting parts and start processing, cutting head machine direction is the vertical centre of gyration from outside to inside, if do not adopt protection, cutting slag can splash to end face and neighbouring non-cutting surface.After brushing overcoat, slags all in process splashes and is all distributed in overcoat surface, is taken off by part, then removed by overcoat after machining.Plasma cut adds man-hour, the red heat state that slag and splashing are melting, and a part, is directly shed on ground on overcoat because itself and protective materials adhesive force are strong in splash; Another part is by the effect of jet power, and be pasted onto reluctantly on overcoat, its removal with overcoat can be removed easily.Because protective materials is calcium carbonate, become Powdered after drying and be attached on the surface, can remove easily with wire brush, time used is little, be applicable to produced on-site, be suitable for plasma cut protection, and protective liquid main composition-calcium carbonate or calcium sulphate soln; With low cost, chalk powder, land plaster etc. that on market, average family finishing uses all can use.
Claims (2)
1. a plasma cut means of defence, is characterized in that carrying out according to following steps:
(1) before part is installed on fixture, first the position of protection is needed to brush water base protective liquid non-finished surface; After non-processing protective liquid solidifies, then mounting parts start ion cutting processing;
(2) completion of processing, removes the dried overcoat of the water base protective liquid of original brushing with wire brush.
2. a kind of plasma cut means of defence according to claim 1, it is characterized in that described water base protective liquid composition is calcium carbonate or calcium sulphate soln, the mass ratio of calcium carbonate or calcium sulfate and water is 1:2 ~ 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562234.5A CN104400199A (en) | 2014-10-21 | 2014-10-21 | Plasma cutting protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562234.5A CN104400199A (en) | 2014-10-21 | 2014-10-21 | Plasma cutting protection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104400199A true CN104400199A (en) | 2015-03-11 |
Family
ID=52637898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410562234.5A Pending CN104400199A (en) | 2014-10-21 | 2014-10-21 | Plasma cutting protection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400199A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084078A (en) * | 1977-02-15 | 1978-04-11 | American Service Products, Inc. | Jet perforator device |
| DE4134134A1 (en) * | 1991-10-15 | 1993-04-22 | Castolin Sa | Coating cast iron@ parts with wear-resistant layer - utilises nickel@, cobalt@, or iron@-based alloy with copper@ or chromium@ or silicon@ or boron@ and additives to avoid high transitional hardness gradients |
| CN102019494A (en) * | 2010-11-12 | 2011-04-20 | 南车株洲电力机车有限公司 | Process method and equipment for rapidly cleaning plasma cutting slag |
| CN102107333A (en) * | 2009-12-23 | 2011-06-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Anti-splash process method for cutting special material |
| CN103706972A (en) * | 2012-10-09 | 2014-04-09 | 青岛三利中德美水设备有限公司 | Method for protecting cutting slag inside stainless steel pipe in intersection line plasma cutting |
-
2014
- 2014-10-21 CN CN201410562234.5A patent/CN104400199A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084078A (en) * | 1977-02-15 | 1978-04-11 | American Service Products, Inc. | Jet perforator device |
| DE4134134A1 (en) * | 1991-10-15 | 1993-04-22 | Castolin Sa | Coating cast iron@ parts with wear-resistant layer - utilises nickel@, cobalt@, or iron@-based alloy with copper@ or chromium@ or silicon@ or boron@ and additives to avoid high transitional hardness gradients |
| CN102107333A (en) * | 2009-12-23 | 2011-06-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Anti-splash process method for cutting special material |
| CN102019494A (en) * | 2010-11-12 | 2011-04-20 | 南车株洲电力机车有限公司 | Process method and equipment for rapidly cleaning plasma cutting slag |
| CN103706972A (en) * | 2012-10-09 | 2014-04-09 | 青岛三利中德美水设备有限公司 | Method for protecting cutting slag inside stainless steel pipe in intersection line plasma cutting |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |