CN100343421C - Gaseous phase and drying rustproof method - Google Patents
Gaseous phase and drying rustproof method Download PDFInfo
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- CN100343421C CN100343421C CNB2004100519433A CN200410051943A CN100343421C CN 100343421 C CN100343421 C CN 100343421C CN B2004100519433 A CNB2004100519433 A CN B2004100519433A CN 200410051943 A CN200410051943 A CN 200410051943A CN 100343421 C CN100343421 C CN 100343421C
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- rust prevention
- gas phase
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- rust
- siccative
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Abstract
The present invention relates to a gas phase and drying rust prevention method. A gas phase rust prevention drying bag is proportionally prepared from a gas phase rust prevention corrosion inhibitor of metal and a drying agent; the gas phase rust prevention corrosion inhibitor of metal and the drying agent simultaneously perform the function of rust prevention in the closed environment of the same package; the weight ratio of the gas phase rust prevention corrosion inhibitor of metal to the drying agent is from 2% to 40%. In the present invention, certain-concentration gas of the gas phase corrosion inhibitor is generated in the space in the package by the volatilization of the gas phase corrosion inhibitor in the gas phase rust prevention drying bag and attached to the surfaces of the metal and packaged substances, and thus, a protective film is formed for preventing environment atmospheres of oxygen, wet gas, etc. from corroding the metal. Simultaneously, the drying agent can absorb water, maintain safe relative humidity of the space in the package, block ionization reaction of rustiness by the metal in contact with water and perform the double functions of rust prevention and protection. A test result indicates that compared with the gas phase metal corrosion inhibitor and the drying agent singly used, the package has the rust prevention cost reduced by 10% to 30%.
Description
Technical field the present invention relates to the technical field of metal rust preventing, particularly relates to the rust-proofing method of metal stamping formed product under packed state.
Background technology is in hot and humid area, and for industries such as electronics, five metals, punching press casting or machinofacture, the antirust problem of product is perplexing each manufacturers.At present, in metal rust preventing technology and Application Areas, antirust method mainly contains following three kinds: 1, change the internal organizational structure of metal, for example make various corrosion resistant alloys, make stainless steel as add chromium, nickel etc. in common iron and steel.2, protective layer method promptly at the metallic surface protective cover, makes metal products and corrosive medium isolation on every side, thereby prevents corrosion.For example: 1. coat machine oil, Vaseline, paint or cover corrosion resistant non-metallic material such as enamel, phenolic antirust paint, plastics on the steel piece surface; 2. use methods such as plating, hot dip or spraying plating, plate the metal that one deck is difficult for being corroded at steel surface, as zinc, tin, chromium, nickel etc., these metals often form the sull of one deck densification because of oxidation, thereby prevention water and air etc. are to the corrosion of iron and steel; 3. make steel surface generate the fine and closely woven stable oxide film of one deck with chemical process, as forming the fine and closely woven black ferroferric oxide film of one deck etc. on steel pieces such as machine parts, firearms surface.3, corrosive medium is handled, eliminate corrosive medium, as often wiping the clean metal equipment or in Hardware fitting, metal products, precision instrument, placing siccative and in corrosive medium, add the inhibiter (volatile rust preventive paper, volatile rust prevention bag) etc. of the corrosion speed that can slow down.
In the metal current impact briquetting packing of product rust-proofing method, mainly adopt above-mentioned the 3rd kind of method.Manufacturer uses siccative mostly, removes the moisture in the packing, makes dehydration in the bale space, keeps the relative humidity of safety, and rust inhibition is played in the ionization reaction that the blocking-up metal gets rusty.Use volatile rust preventive material (anti-tarnish paper, antirust bag) is also arranged; impregnation vapour-phase inhibitor therein can continue to gasify lentamente, volatilize at normal temperatures; the inhibiter steam that evaporates is attached to exposed metallic surface, thus the thick protective membrane of formation one or two molecule of one deck.This protective membrane can prevent ambiances such as oxygen, moisture to corrosion of metal, thereby plays rust-proof effect.The vapor phase corrosion inhibitor technology is mainly used in machinofacture piece packaging, auto parts machinery packing, packaging steel, strip material packing, hardware ﹠ tools packing etc. at present.
At present, production such as computer housing punching press are subjected to the puzzlement that the market starting material appreciate, and cost squeeze becomes the problem of industry competition, and replacing novel material cheaply is the target that each manufacturer is sought.Antirust product also has been subjected to impact in this starting material Disturbance Caused by Rising Price, the exploitation of low-cost novel material, research and use are the extremely urgent demands that reduces cost.The independent chemical rust-proofing method that adopts siccative to absorb the physics rust-proofing method of moisture and adopt the vapor phase corrosion inhibitor technology separately all can not reduce cost.
The summary of the invention the technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and proposes low gas phase of a kind of cost and dry rust-proofing method.
The present invention solve the technical problem can be by realizing by the following technical solutions:
A kind of gas phase and dry rust-proofing method are proposed, vapor phase metal rust inhibitor and siccative are made into the dry bag of volatile rust prevention in proportion, described vapor phase metal inhibition rust-preventive agent and siccative play rust inhibition simultaneously in same packing closed environment, the weight ratio of described vapor phase metal rust inhibitor and siccative is 1: 50～2: 5.
The present invention is by the volatilization of vapour-phase inhibitor in the dry bag of volatile rust prevention; in the packing content space, produce certain density vapour-phase inhibitor gas; attached to the surface of metal and packed article, thereby form protective membrane, prevent that ambiances such as oxygen, moisture are to corrosion of metal.Simultaneously, siccative can absorb moisture, keeps the relative humidity of packing content space safety, and the blocking-up metal is met the ionization reaction of aquatic rust, plays the corrosion protection of economic benefits and social benefits, has reduced cost effectively.By adopting the inventive method to carry out rust prevention test to computer housing stamped material-hot-dip galvanized steel sheet and cold-rolling galvanization steel plate, with using vapor phase metal inhibiter and siccative to carry out rust prevention test relatively separately, the result shows, packs antirust cost and has reduced 10%-30%.
Description of drawings
Fig. 1 is the antirust dry technological process of production figure that wraps of a kind of gas that the inventive method adopts.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
Gas phase of the present invention and dry rust-proofing method, vapor phase metal rust inhibitor and siccative are made into the dry bag of volatile rust prevention in proportion, described vapor phase metal inhibition rust-preventive agent and siccative play rust inhibition simultaneously in same packing closed environment, the weight ratio of described vapor phase metal rust inhibitor and siccative is 1: 10～3: 10.Described siccative is silica gel particle, active earths particle, lime particle or montmorillonite particle.
The dry bag of described volatile rust prevention be manufactured with following three kinds of methods:
One, the volatile rust preventive paper that will contain the vapor phase metal rust inhibitor drenches film or gluing, be made into the volatile rust prevention wrapping paper that can seal after; Become the dry bag of volatile rust prevention with described volatile rust prevention wrapping paper encapsulation siccative again.Its technological process of production figure as shown in Figure 1.
Two, will contain the crystalline particle of vapor phase metal rust inhibitor or carrier granule and siccative will mix by 1: 10～3: 10 weight ratio after; Encapsulate above-mentioned mixing material with ordinary packing paper and become the dry bag of volatile rust prevention.
Three, the vapor phase metal rust inhibitor is added in the siccative in proportion mix, become the composite grain that contains gas phase metal rust preventing inhibiter and siccative behind the drying and dewatering; Encapsulate above-mentioned composite grain with ordinary packing paper again and become the dry bag of volatile rust prevention.
The making of described volatile rust preventive paper and siccative can be consulted the standard of following state internal desiccant, anti-tarnish paper:
Siccative: HG/T 2765-1996, silica-gel drier industry standard
GJB 2714-96, GJB
Anti-tarnish paper: GB/T 14188-93, gas-phase rustproof packaging material are selected general rule for use
GB/T 16267-1996, vapor phase corrosion inhibitor ability test method
QB 1319-91, volatile rust preventive paper industry standard
JB/T 4051.1, volatile rust preventive paper technical qualification
JB/T 4051.2, volatile rust preventive paper test method
The hygroscopic property of siccative and volatile rust prevention inhibiter volatile performance are specific as follows:
1. siccative is under the situation of oven dry fully, and the rate of moisture absorption at its initial stage is very fast.25 ℃ of temperature T, humidity RH is 90% o'clock, can reach more than 70% of whole rate of moisture absorption in 2 hours.
2. the inhibiter evaporation rate of anti-tarnish paper coating determines according to its volatile steam pressure, is 25 ℃ in temperature, and humidity is 90% o'clock, vapor pressure is usually between 0.01-0.06Pa, vapor pressure also is subjected to the long-pending interior relative humidity influence of packing content, and humidity is big more, and vapour pressure is low more.
According to the hygroscopic property and the volatile rust prevention inhibiter volatile performance of siccative, when using the antirust and independent use of siccative volatile rust prevention inhibiter antirust separately, the consumption of siccative and gas phase rust inhibitor is specific as follows:
1. the consumption of siccative:
U＝30.4×C×A×R×M×DRF/B
U=siccative unit number (1 unit silica-gel drier=20 gram)
A=is every inner surface area (not comprising the sealing surface area) (in of wet packing material bag
2)
R=is every steam the transmitance ([g/100in of wet packing material bag
2]/24h)
M=maximum storage time (moon)
DRF=siccative coefficient of diminution (consulting table 1)
The minimum wettability power (g/ unit) of B=siccative when MIH (maximal humidity in the maximum packing)
C=0.01 area constant (100in
2/ in
2)
30.4=every monthly average fate
Siccative coefficient of diminution (DRF) under the different maximum average conditions of storage
| Storing temp (℃) | Storage humidity (relative humidity) | |||
| 90％ | 80％ | 70％ | 60％ | |
| 40 35 30 25 20 | 1.00 0.76 0.58 0.43 0.32 | 0.89 0.68 0.51 0.38 0.28 | 0.78 0.59 0.45 0.33 0.25 | 0.67 0.51 0.38 0.29 0.21 |
Table 1
PE plastics bag water vapour permeability: R=0.581g/100in
2]/24h
Reference standard: the EIA-583 of EIA
At Different Package volume used siccative consumption such as table 2
| Packing content is amassed m 3 | Siccative consumption g | Price unit |
| 1.00 | ≥1000 | 10.00 |
| 0.08 | ≥125 | 1.25 |
| 0.05 | ≥75 | 0.75 |
| 0.04 | ≥60 | 0.60 |
| 0.03 | ≥50 | 0.50 |
| 0.02 | ≥30 | 0.30 |
Table 2
Pack environment: T=25 ℃ of 180 days RH=65% shelf lives
2. the consumption of anti-tarnish paper:
Volatile rust preventive paper is a paper substrate by wood pulp kraft paper normally, coating metal vapour-phase inhibitor and the rush-resisting material that is made into, and its glue spread is greater than 18g/m
2, according to GB/T14188-1993, " gas-phase rustproof packaging material is selected general rule for use " rust inhibitor consumption every cubic metre should be greater than 35g.
| Packing content is amassed m 3 | Anti-tarnish paper consumption area cm 2 | The inhibiter content g | Price unit |
| 1.00 | ≥20000 | ≥35 | 16.00 |
| 0.08 | ≥1600 | ≥2.8 | 1.28 |
| 0.05 | ≥1000 | ≥1.75 | 0.8 |
| 0.04 | ≥800 | ≥1.4 | 0.64 |
| 0.03 | ≥600 | ≥1.05 | 0.48 |
| 0.02 | ≥400 | ≥0.7 | 0.32 |
Pack environment: T=25 ℃ of 180 days RH=65% shelf lives
Table 3
When adopting the inventive method antirust, hygroscopic property and anti-tarnish paper inhibiter volatile performance according to above-mentioned siccative, the consumption of volatile rust preventive paper and siccative calculates, and when cabinet produces wire wrapping, consider characteristics and the site environment humidity and the temperature of its economic benefits and social benefits.Generally speaking, in southern weather, envrionment temperature is between 20 ℃-30 ℃, and humidity is between 50%-80%, and by the optimum seeking method principle, when calculating packing rush-resisting material consumption, temperature is assumed to 25 ℃, and humidity is assumed to 65%.After the cabinet packing, siccative is at first started working, and the moisture in the packing content thing is removed rapidly, guarantees the relative humidity of safety in the packing.Simultaneously, the vapour-phase inhibitor in the anti-tarnish paper volatilizees slowly, and under the preposition protection of siccative, the inhibiter gas concentration reaches the corrosion protection gas concentration, and it's antirust inductive phase is past degree of safety.
Use the inventive method antirust used volatile rust prevention inhibiter consumption, anti-tarnish paper consumption area and siccative to see Table 3 with measuring:
| Packing content is amassed m 3 | Siccative weight g | Anti-tarnish paper consumption area cm | The inhibiter content g | Price unit |
| 1.00 | 500 | ≥3500 | ≥6.3 | 8.00 |
| 0.08 | 60 | ≥400 | ≥0.7 | 1.10 |
| 0.05 | 50 | ≥270 | ≥0.45 | 0.65 |
| 0.04 | 40 | ≥200 | ≥0.35 | 0.48 |
| 0.03 | 30 | ≥140 | ≥0.25 | 0.40 |
| 0.02 | 20 | ≥120 | ≥0.2 | 0.25 |
Pack environment: T=25 ℃ of 180 days RH=65% shelf lives
Table 4
In sum, according to table 2 to table 4 listed use magnitude relation, use the cost of the inventive method to be better than using siccative or volatile rust preventive paper separately, pack antirust cost and can reduce 10%-30%.
Claims (2)
1. a gas phase and dry rust-proofing method, vapor phase metal rust inhibitor and siccative are made into the dry bag of volatile rust prevention in proportion, described vapor phase metal inhibition rust-preventive agent and siccative play rust inhibition simultaneously in same packing closed environment, it is characterized in that: the weight ratio of described vapor phase metal rust inhibitor and siccative is 1: 50～2: 5, the making of the dry bag of described volatile rust prevention may further comprise the steps
The volatile rust preventive paper that 1. will contain the vapor phase metal rust inhibitor drenches film or gluing, is made into the volatile rust prevention wrapping paper that can seal;
2. become the dry bag of volatile rust prevention with described volatile rust prevention wrapping paper encapsulation siccative.
2. gas phase as claimed in claim 1 and dry rust-proofing method is characterized in that: the weight ratio of described vapor phase metal rust inhibitor and siccative is 1: 10～3: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100519433A CN100343421C (en) | 2004-10-18 | 2004-10-18 | Gaseous phase and drying rustproof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100519433A CN100343421C (en) | 2004-10-18 | 2004-10-18 | Gaseous phase and drying rustproof method |
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| Publication Number | Publication Date |
|---|---|
| CN1619014A CN1619014A (en) | 2005-05-25 |
| CN100343421C true CN100343421C (en) | 2007-10-17 |
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|---|---|---|---|
| CNB2004100519433A Expired - Fee Related CN100343421C (en) | 2004-10-18 | 2004-10-18 | Gaseous phase and drying rustproof method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102807A (en) * | 2012-11-13 | 2013-05-15 | 铜陵祥云消防科技有限责任公司 | Gas-phase corrosion inhibition antirust agent containing modified montmorillonite powder |
| CN107119279A (en) * | 2016-02-24 | 2017-09-01 | 杭州派肯科技有限公司 | Adaptively, the volatile rust prevention method of self-regulation |
| JP7154498B2 (en) * | 2018-10-09 | 2022-10-18 | 地方独立行政法人大阪産業技術研究所 | Method for manufacturing ferrous members |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209869A (en) * | 1988-08-23 | 1993-05-11 | Cortec Corporation | Vapor phase corrosion inhibitor-dessiccant material |
| US5320778A (en) * | 1988-08-23 | 1994-06-14 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| US5332525A (en) * | 1988-08-23 | 1994-07-26 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| US5344589A (en) * | 1988-08-23 | 1994-09-06 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| JPH10324983A (en) * | 1997-02-28 | 1998-12-08 | Excor Korrosionsschutz Technol & Prod Gmbh | Corrosion preventive composition material |
-
2004
- 2004-10-18 CN CNB2004100519433A patent/CN100343421C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209869A (en) * | 1988-08-23 | 1993-05-11 | Cortec Corporation | Vapor phase corrosion inhibitor-dessiccant material |
| US5320778A (en) * | 1988-08-23 | 1994-06-14 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| US5332525A (en) * | 1988-08-23 | 1994-07-26 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| US5344589A (en) * | 1988-08-23 | 1994-09-06 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| US5422187A (en) * | 1988-08-23 | 1995-06-06 | Cortec Corporation | Vapor phase corrosion inhibitor-desiccant material |
| JPH10324983A (en) * | 1997-02-28 | 1998-12-08 | Excor Korrosionsschutz Technol & Prod Gmbh | Corrosion preventive composition material |
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| CN1619014A (en) | 2005-05-25 |
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