CN104815786A - Treatment method of environment-friendly oil seal frame - Google Patents
Treatment method of environment-friendly oil seal frame Download PDFInfo
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- CN104815786A CN104815786A CN201510227123.3A CN201510227123A CN104815786A CN 104815786 A CN104815786 A CN 104815786A CN 201510227123 A CN201510227123 A CN 201510227123A CN 104815786 A CN104815786 A CN 104815786A
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- degreasing agent
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Abstract
The invention discloses a treatment method of an environment-friendly oil seal frame. The treatment method comprises the specific steps of step 1, frame soaking through a degreasing agent; step 2, washing which comprises washing the frame through the clear water and removing the degreasing agent remaining on the frame; step 3, pickling which comprises removing rust on the surface of the frame through phosphoric acid; step 4, washing which comprises washing the frame through the clear water and removing the phosphoric acid remaining on the frame; step 5, surface adjustment which comprises adjusting the PH (Potential Of Hydrogen) of a water solution to be neutral or weakly alkaline, wherein a PH value after adjustment is 7 to 10; step 6, phosphating which comprises performing phosphating on the frame; step 7, washing which comprises performing washing through the clear water; step 8, drying which comprises removing the moisture of the frame; step 9, glue dipping which comprises performing dip coating on the frame after phenolic resin and anhydrous ethanol are diluted in proportion and perform reserving after draining and baking. According to the treatment method of the environment-friendly oil seal frame, the process is simple and convenient, the cost is low, the adhesion is good and accordingly a coating is not easy to fall off, the pollution to the environment is reduced, the excitant taste is not produced, and the gluing efficiency is improved.
Description
Technical field
The invention belongs to the processing technology field of outside framework oil seal and band skeleton rubber part, be specifically related to a kind of containing acrylonitrile-butadiene rubber, acrylic rubber, polyurethane rubber and metallic framework iron, the method for the heat cure bonding of Aluminum-aluminum alloy.
Background technology
In order to enhance productivity, the rubber framework grease seal gluing mode of existing market generally adopts the mode of dipping, but this glue spreading method is vulnerable to the impact of adhesive viscosity, rubberised layer is in uneven thickness, there is the caducous phenomenon of production process floating coat, and a lot of adhesive all adopts toluene, dimethylbenzene, acetone equal solvent to dilute, these toxic solvent are large to human injury, big for environment pollution.
Summary of the invention
The object of the invention is the processing method proposing a kind of environmental protection oil tight skeleton, overcome the above-mentioned deficiency of prior art, its structural design is simple, reasonable, improves the yield rate in production process.
In order to reach above-mentioned purpose of design, the technical solution used in the present invention is as follows:
A processing method for environmental protection oil tight skeleton, its concrete steps are as follows:
1), first soak skeleton with degreasing agent, soak time is 5 ~ 10min about; Degreasing agent temperature is 30 ~ 60 DEG C;
2), wash, rinse skeleton with clear water, remove degreasing agent residual on skeleton;
3), pickling: adopt phosphoric acid to remove the rust on skeleton surface, phosphoric acid concentration scope is 5 ~ 20%;
4), wash, rinse skeleton with clear water, remove phosphoric acid residual on skeleton;
5), show to adjust, regulate the PH of the aqueous solution to neutral or alkalescent (7 ~ 10);
6), phosphatization, skeleton is carried out phosphorating treatment, and phosphatization temperature is 35 ~ 100 DEG C, also can be normal temperature;
7), wash, adopt clear water to rinse 1 ~ 5min, clear water temperature is 60 ~ 100 DEG C, removes the solvent that skeleton is residual;
8), dry, the moisture of removing skeleton, bake out temperature is 90 ~ 130 DEG C.
9), impregnation, phenolic resins and absolute ethyl alcohol are carried out dip-coating by after 1:7 ~ 1:25 dilution proportion to skeleton, time of immersion 10 ~ 150S, are filtered dry, then temperature be 120 ~ 190 DEG C baking 2 ~ 8min after for subsequent use.
Preferably, described degreasing agent adopts degreasing powder, degreasing agent and water to mix, and the content of degreasing powder and degreasing agent is respectively 4 ~ 20%, 4 ~ 20%, and all the other are water.
Preferably, described degreasing agent temperature is 35-40 DEG C, and the content of degreasing agent and degreasing powder is respectively 8 ~ 12%, 8 ~ 12%.
Preferably, the ratio of described phenolic resins and absolute ethyl alcohol is 1:7 ~ 1:10.
Preferably, the skeleton of coating carries out second time impregnation after drying first, is filtered dry, then toasts.
The beneficial effect of the processing method of environmental protection oil tight skeleton of the present invention is: its technique is simple, convenient, and cost is low, and cementability is strong, coating difficult drop-off; Reduce the pollution to environment, nonirritant taste, improve gluing efficiency.
Thermosetting phenolic resin, by adopting anhydrous ethanol solvent dilution, adopts special solvent to carry out pretreatment to rubber parts skeleton, realizes the close adhesion of rubber and skeleton.The method improve the toxicity adopting toluene, dimethylbenzene equal solvent as the glue of diluent, also prevent from causing coating shedding or adhering in other coating when separating because of skeleton is adhered to one another in gluing process simultaneously, improve gluing efficiency.
The present invention is because carried out degreasing, oil removing, processing of rust removing to skeleton, all inorganic agents are all environment-friendly types, environmental pollution is few, this processing method is effective eliminates the bonding spot of Skeleton Table face sound, and the coating of this phenolic aldehyde glue relatively before to adopt the dip-coating of P11 glue to have coating thin, the advantage that cementability is strong, and coating difficult drop-off.In addition, adopt absolute ethyl alcohol to replace acetone, butanone, toluene or dimethylbenzene equal solvent as diluent, there is the nontoxic effect even can sterilized, environmentally safe, easy to operate, without the advantage of unpleasant sharp property smell.
Accompanying drawing explanation
Fig. 1 is the flow chart of the processing method of environmental protection oil tight skeleton of the present invention.
Detailed description of the invention
Below optimum implementation of the present invention is described in further detail.
As shown in Figure 1, the processing method of described environmental protection oil tight skeleton, its concrete steps are as follows:
1), first soak skeleton with degreasing agent, soak time is 5 ~ 10min about; Degreasing agent temperature is 30 ~ 60 DEG C;
Degreasing agent adopts degreasing powder, degreasing agent and water to mix, and the content of degreasing powder and degreasing agent is respectively 4 ~ 20%, 4 ~ 20%, and all the other are water;
Described degreasing agent temperature is 35-40 DEG C, and degreasing agent and degreasing powder regulate according to skeleton surface pollution degree, ordinary circumstance, and the optimum content of degreasing agent and degreasing powder is 8 ~ 12%.
2), wash, rinse skeleton with clear water, remove degreasing agent residual on skeleton;
3), pickling: adopt phosphoric acid to remove the rust on skeleton surface, phosphoric acid concentration scope is 5 ~ 20%;
The optimum content of described phosphoric acid is 9 ~ 12%.
4), wash, rinse skeleton with clear water, remove phosphoric acid residual on skeleton;
5), show to adjust, regulate the PH of the aqueous solution to neutral or alkalescent (7 ~ 10);
6), phosphatization, skeleton is carried out phosphorating treatment, and phosphatization temperature is 35 ~ 100 DEG C, also can be normal temperature;
Low temperature phosphor or normal temperature phosphating during phosphatization mainly adopts, the phosphating coat crystallization formed because of temperature is for this reason careful, appropriate thickness, is intermembranously seldom mingled with sediment thing, and coating gloss is good.Greatly can improve the adhesive force, pliability, impact resistance etc. of coating, more favourable to raising skeleton bonding force.
7), wash, adopt clear water to rinse 1 ~ 5min, clear water temperature is 60 ~ 100 DEG C, removes the solvent that skeleton is residual;
8), dry, the moisture of removing skeleton, bake out temperature is 90 ~ 130 DEG C.
Best bake out temperature is 120 DEG C, not easily again gets rusty.
9), impregnation, phenolic resins and absolute ethyl alcohol are carried out dip-coating by after 1:7 ~ 1:25 dilution proportion to skeleton, manual dip-coating or equipment can be adopted to carry out gluing, time of immersion 10 ~ 150S, be filtered dry, then temperature be 120 ~ 190 DEG C baking 2 ~ 8min after for subsequent use;
The optimal proportion of described phenolic resins and absolute ethyl alcohol is 1:7 ~ 1:10, it is together bonded to each other that gluing adopts coating apparatus to be conducive to the skeleton after preventing gluing, because coating apparatus constantly rotates in the process of baking, wherein best rotary speed is 100 ~ 300 revs/min.
The skeleton of coating can carry out second time impregnation after drying first, is filtered dry, then toasts.
Second glue spreading adopts coating apparatus, suspension is filtered dry, then dries with 140 ~ 160 DEG C after gluing, and drying skeleton basket rotation optimum speed in process is 300 ~ 400 revs/min.
Embodiment 1:
A kind of oil sealing acrylonitrile-butadiene rubber and metlbond technique, comprise the following steps:
1), by skeleton with iron basket with holes install and directly put into the good degreasing bath of proportioning, the proportioning of degreasing agent is as follows: water: degreasing powder: degreasing agent=400:20:25
Stop 5 ~ 10 minutes in groove, the temperature of solvent controls at 40 ± 5 DEG C.
2), wash after degreasing, washing time controls at 1min.
3), pickling, its phosphoric acid: water=1:7, the time of pickling is 8 minutes, then washes.
4), NaHCO is adopted
3or Na
2cO
3carry out table to adjust, neutralizing acid, then carries out phosphorating treatment, processes rear hot water and cleans skeleton, 110 DEG C of oven dry.
5) phenolic resins and absolute ethyl alcohol are carried out dip-coating by after 1:7 dilution proportion to skeleton, time of immersion is 110S, and taking-up is static is afterwards filtered dry 1min, and then rotary furnace drying under the situation of 150 DEG C, rotary speed is 200 turns/min.
6) be again immersed in glue by the skeleton that dip-coating is dried well, be then filtered dry, baking, its baking temperature is 150 DEG C, and the time is 3min.
Embodiment 2:
A kind of oil sealing ACM and metlbond technique, comprise the following steps:
1), by skeleton with iron basket with holes install and directly put into the good degreasing bath of proportioning, the proportioning of degreasing agent is as follows: water: degreasing powder: degreasing agent=100:7:6
In groove, stop 8min, the temperature of solvent controls at 45 ± 5 DEG C.
2), wash after degreasing, washing time controls at 2min.
3), pickling, its phosphoric acid: water=1:8, the time of pickling is 10 minutes, then washes.
4), adopt nertralizer to carry out table tune, neutralizing acid, then carries out phosphorating treatment, processes rear hot water and cleans skeleton, 120 DEG C of oven dry.
5) phenolic resins and absolute ethyl alcohol are carried out dip-coating by after 1:9 dilution proportion to skeleton, time of immersion is 130S, takes out staticly to be filtered dry 40S, and then rotary furnace drying under the situation of 150 DEG C, rotary speed is 250 turns/min.
6) be again immersed in glue by the skeleton that dip-coating is dried, be then filtered dry, baking, during baking, the rotary speed of iron basket is 400 turns/min.
Outside framework oil seal processing scheme of the present invention comprises acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber, polyurethane rubber, ACM and AEM rubber adhesion technique bonding with metalwork.Also the outside framework oil seal of purchasing ore, rubbery sealed body, inner frame is comprised.
This patent, except process oil sealing skeleton, is also applicable to the skeleton treatment of other matrix type rubber parts.For the metalwork that skeleton surface is too smooth, carry out blasting treatment before process, and then carry out phosphatization pretreatment.
Described skeleton bonderite, promoter and nertralizer, be also applicable to the environment-friendly phosphating agent of other manufacturer production on market, promoter and nertralizer, not containing natrium nitrosum in promoter here.
Described skeleton phosphorating treatment is also applicable to high temperature phosphorization process, is also applicable to other parkerizing method simultaneously.
The proportioning of described phenolic resins and absolute ethyl alcohol is adjusted to 1:12 ~ 1:25, is mainly used in diluting the adhesive glue that concentration rises because of absolute ethanol volatilizes prepared.Also absolute ethyl alcohol can directly be added in the phenolic resins glue of thickening.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, and being convenient to these those skilled in the art can understand and apply the invention, and can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, some simple deduction or replace can also be made without departing from the inventive concept of the premise, and need not through performing creative labour.Therefore, those skilled in the art are according to announcement of the present invention, and the simple modifications made the present invention all should within protection scope of the present invention.
Claims (5)
1. a processing method for environmental protection oil tight skeleton, is characterized in that: its concrete steps are as follows:
1), first soak skeleton with degreasing agent, soak time is 5 ~ 10min about; Degreasing agent temperature is 30 ~ 60 DEG C;
2), wash, rinse skeleton with clear water, remove degreasing agent residual on skeleton;
3), pickling: adopt phosphoric acid to remove the rust on skeleton surface, phosphoric acid concentration scope is 5 ~ 20%;
4), wash, rinse skeleton with clear water, remove phosphoric acid residual on skeleton;
5), show to adjust, regulate the PH of the aqueous solution to neutral or alkalescent;
6), phosphatization, skeleton is carried out phosphorating treatment, and phosphatization temperature is 35 ~ 100 DEG C, also can be normal temperature;
7), wash, adopt clear water to rinse 1 ~ 5min, clear water temperature is 60 ~ 100 DEG C, removes the solvent that skeleton is residual;
8), dry, the moisture of removing skeleton, bake out temperature is 90 ~ 130 DEG C;
9), impregnation, phenolic resins and absolute ethyl alcohol are carried out dip-coating by after 1:7 ~ 1:25 dilution proportion to skeleton, time of immersion 10 ~ 150S, are filtered dry, then temperature be 120 ~ 190 DEG C baking 2 ~ 8min after for subsequent use.
2. the processing method of environmental protection oil tight skeleton according to claim 1, is characterized in that: described degreasing agent adopts degreasing powder, degreasing agent and water to mix, and the content of degreasing powder and degreasing agent is respectively 4 ~ 20%, 4 ~ 20%, and all the other are water.
3. the processing method of environmental protection oil tight skeleton according to claim 1, is characterized in that: described degreasing agent temperature is 35-40 DEG C, and the content of degreasing agent and degreasing powder is respectively 8 ~ 12%, 8 ~ 12%.
4. the processing method of environmental protection oil tight skeleton according to claim 1, is characterized in that: the ratio of described phenolic resins and absolute ethyl alcohol is 1:7 ~ 1:10.
5. the processing method of environmental protection oil tight skeleton according to claim 1, is characterized in that: the skeleton of coating carries out second time impregnation after drying first, is filtered dry, then toasts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227123.3A CN104815786A (en) | 2015-05-06 | 2015-05-06 | Treatment method of environment-friendly oil seal frame |
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| CN201510227123.3A CN104815786A (en) | 2015-05-06 | 2015-05-06 | Treatment method of environment-friendly oil seal frame |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154896A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Degreasing process for automobile damping and suspension part |
| CN105150445A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Production process for vehicle vibration reducing and absorbing parts |
| CN111361170A (en) * | 2020-03-06 | 2020-07-03 | 浙江顺惠密封件有限公司 | Preparation method of oil seal |
| CN113210232A (en) * | 2021-05-08 | 2021-08-06 | 杭州老板电器股份有限公司 | Impeller surface treatment method and dip-coating device |
| CN113815170A (en) * | 2021-08-20 | 2021-12-21 | 建新赵氏科技有限公司 | Bonding process of automobile vibration damper |
-
2015
- 2015-05-06 CN CN201510227123.3A patent/CN104815786A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154896A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Degreasing process for automobile damping and suspension part |
| CN105150445A (en) * | 2015-09-06 | 2015-12-16 | 安徽拓盛汽车零部件有限公司 | Production process for vehicle vibration reducing and absorbing parts |
| CN111361170A (en) * | 2020-03-06 | 2020-07-03 | 浙江顺惠密封件有限公司 | Preparation method of oil seal |
| CN113210232A (en) * | 2021-05-08 | 2021-08-06 | 杭州老板电器股份有限公司 | Impeller surface treatment method and dip-coating device |
| CN113815170A (en) * | 2021-08-20 | 2021-12-21 | 建新赵氏科技有限公司 | Bonding process of automobile vibration damper |
| CN113815170B (en) * | 2021-08-20 | 2023-09-01 | 建新赵氏科技股份有限公司 | Bonding process of automobile vibration damper |
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Application publication date: 20150805 |
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