CN109593240A - Tire-mold on-line cleaning method - Google Patents
Tire-mold on-line cleaning method Download PDFInfo
- Publication number
- CN109593240A CN109593240A CN201811508507.2A CN201811508507A CN109593240A CN 109593240 A CN109593240 A CN 109593240A CN 201811508507 A CN201811508507 A CN 201811508507A CN 109593240 A CN109593240 A CN 109593240A
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- Prior art keywords
- mold
- tire
- cleaning
- method described
- rubber
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses tire-mold on-line cleaning method, includes the following steps: that the abstergent rubber material of tool is covered on framework material and be fabricated to mold cleaning tire base, then the mold cleaning tire base is placed in tire-mold and is vulcanized, clean the dirty of tire-mold surface.The present invention does not need dismounting tire-mold, does not need lifting temperature, the on-line cleaning of tire-mold may be implemented completely.Method of the invention is easy to operate, and cleaning effect is good, and cleaning efficiency is high, free from environmental pollution, does not damage mold, especially still has good cleaning effect to positions such as the side of mold, angle, seam, holes.
Description
Technical field
The invention belongs to tire-mold cleaning technique field, tire-mold on-line cleaning methods.
Background technique
Due to surface of solids molecular force field imbalance, so there is surface energy.Different type solid surface energy is different.By surface
Can be successively from high to low: covalent solid (such as diamond) > metal solid (such as metal die) > ion solid (such as calcium carbonate
Equal inorganic fillers) > Van der Waals solid (such as rubber high molecular polymer).Object of the high surface energy solid to low-surface-energy
Matter has adsorptivity, so metal die is easy absorption inorganic filler and rubber etc..
Thus it is not difficult to find out that in tire vulcanization process, mold fouling problems are an inevitable phenomenons.Vulcanizing
Raw rubber in journey in rubber, various compounding agents and vulcanizing agent etc. can be by comprehensive functions such as chemical reaction and physical adherences in mould
It is dirty to have surface generation, is particularly acute in positions such as side, angle, seam, holes.Sulfide can and zinc oxide react that be formed can be in mold table
Inorganic sediments zinc sulphide is formed on face, the small-molecule substance in rubber can be attached on the crystal of zinc sulphide cause it is more serious
Dirty, accumulation of deposits will affect the surface quality of rubber product to a certain extent.If do not clean also will cause corruption for a long time
Mold is lost, the service life of mold is influenced.
The cleaning technique of tire-mold is divided into offline cleaning technique and on-line cleaning technology according to whether needing to dismount mold
Two major classes.
Current most widely used offline cleaning technique, which is also referred to as conventional clean technology mainly, has sandblasting ablution and chemistry clear
Wash method.These methods require dismounting mold and go up and down temperature, and labor intensity is high and the cleaning frequency is long, and cleaning efficiency is very low.Its
Middle sandblasting ablution is larger in corner angle damage of the cleaning process to cavity body of mould, can shorten die life, while also easily causing
Die venting hole plug.Chemical cleaning method long-time service can corrode mold, to directly affect the appearance and quality of product.Due to
Cleaning medicament used pollutes the environment and damages the health of operator, therefore must be equipped with complete labour protection means and pollution
Object processing equipment.
With the development of cleaning technique, has the cleaning technique that on-line cleaning may be implemented at present, most typical is exactly to swash
Light cleaning technique and dry ice blasting cleaning technique.The advantage of laser cleaning be it is efficient, quick, mold, Bu Huizao will not be damaged
At environmental pollution, safe and reliable and do not damage operator's health, can remove various different-thickness, heterogeneity it is dirty,
Cleaning process is easy to automate and far distance control.But laser cleaning equipment investment is high, and operator must have higher
Specialized Quality, technological service and in terms of be restricted, in addition laser irradiation less than side, angle, seam, hole
Interior dirty elimination effect is poor.Dry ice cleaning method can directly clean hot tire-mold on vulcanizer, without cooling and take
Lower mold, on-line cleaning easy to accomplish.Advantage is not damage mold, noresidue, and cleaning efficiency is very fast.The disadvantage is that side, angle,
Dirty elimination effect in seam, hole is poor, and mold lubrication effect is bad, obtains after cleaning and heats up for a long time.
It is therefore seen that although both the above cleaning technique referred to as on-line cleaning technology, actually they in linear ratio
Poor, effect can not reach outstanding level.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of the prior art and provide one kind not needing dismounting tire-mold, do not need to rise
Cooling degree, easy to operate, cleaning effect is good, and cleaning efficiency is high, free from environmental pollution, does not damage mold, especially side, angle, seam,
The positions such as hole still have the tire-mold on-line cleaning method of good cleaning effect.
Technical solution of the present invention is summarized as follows:
Tire-mold on-line cleaning method includes the following steps: to be covered on skeleton having abstergent rubber material
It is fabricated to mold cleaning tire base on material, then the mold cleaning tire base is placed in tire-mold and is vulcanized, cleans the dirty of tire-mold surface
It is dirty.
Have abstergent rubber material to be made of following raw materials: 100 parts by weight of raw rubber, reinforcing filler 40-60 weight
Part is measured, heat resistanceheat resistant tears agent 3-10 parts by weight, disintegrates agent 8-20 parts by weight and crosslinking agent 1-5 parts by weight.
Preferably, raw rubber is the composition of ethylene propylene diene rubber and butadiene rubber.
Reinforcing filler is preferably at least one of precipitated silica, fume colloidal silica and carbon black.
It is preferably the alicyclic hydrocarbon resin of hydrogenation modification that heat resistanceheat resistant, which tears agent,.
It is preferred to disintegrate agent: at least one of higher aliphatic acids, hydrosulphate and sulphonic acid compound.
Higher aliphatic acids is lauric acid, oleic acid, stearic acid, linoleic acid or ricinoleic acid；
Hydrosulphate is sulfated castor oil or lauryl sodium sulfate；
Sulphonic acid compound is dioctyl succinate disulfonate acid or neopelex.
Crosslinking agent is preferably 2,5- dimethyl -2,5- bis(t-butylperoxy) hexane and dual-tert-butyl peroxy isopropyl base benzene
At least one of.
The condition of vulcanization is 175 DEG C ± 10 DEG C of temperature, pressure is 1 to 3MPa, is vulcanized 5 to 15 minutes.
Framework material is made of following methods: the determination tire-mold to be cleaned, and chooses the tire-mold or same
The finished tire or unqualified tire that model tire-mold is produced, all remove tyre surface and sidewall decorative pattern.
Advantages of the present invention:
The present invention does not need dismounting tire-mold, does not need lifting temperature, and the online clear of tire-mold may be implemented completely
It washes.Method of the invention is easy to operate, and cleaning effect is good, and cleaning efficiency is high, free from environmental pollution, does not damage mold, especially right
The positions such as side, angle, seam, the hole of mold still have good cleaning effect.
The central principle of mold cleaning tire base cleaning technique is the abstergent rubber material of tool, this rubber material is to utilize rubber
Glue mixing technology is having the agent of disintegrating that can reduce metal die surface energy to be uniformly mixed into rubber, in the process of the vulcanization of rubber
In disintegrate agent and can migrate and infiltrate on the interface of rubber and mold, reduce metal die surface can, to disintegrate dirty and mould
Then adhesive force between tool is vulcanized simultaneously by dirty stick together that the rubber being also in sulfidation keeps apart these
It takes away, completes the cleaning to mold.Mold cleaning tire base can be recycled and be reused, and be pursued while realizing on-line cleaning better
Economy.
Specific embodiment
Below by specific embodiment, the present invention is further illustrated.
Have the preparation of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 2-3 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent,
Disintegrate agent and crosslinking agent, control temperature obtains uniform mixture after being kneaded 6-15 minutes under conditions of 60-80 DEG C, then at
Type machine is pressed into the sheet of required size.
The raw material basis proportion (unit: gram) for having abstergent rubber material is shown in Table 1.
Table 1
With the lauric acid of stearic acid, linoleic acid or ricinoleic acid alternate embodiment 1, the other the same as in Example 1 forms new reality
Apply example.
Embodiment 7
Have the preparation (raw material is embodiment 1) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 2 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Agent and crosslinking agent are solved, control temperature is kneaded under conditions of 70 DEG C obtains uniform mixture after ten minutes, then with molding machine pressure
The sheet of required size is made.
Embodiment 8
Have the preparation (raw material is embodiment 2) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 3 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Solve agent and crosslinking agent, control temperature obtains uniform mixture after being kneaded 15 minutes under conditions of 60 DEG C, then with molding machine pressure
The sheet of required size is made.
Embodiment 9
Have the preparation (raw material is embodiment 3) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 3 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Agent and crosslinking agent are solved, control temperature obtains uniform mixture after being kneaded 6 minutes under conditions of 80 DEG C, then is suppressed with molding machine
At the sheet of required size.
Embodiment 10
Have the preparation (raw material is embodiment 4) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 2 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Agent and crosslinking agent are solved, control temperature is kneaded under conditions of 70 DEG C obtains uniform mixture after ten minutes, then with molding machine pressure
The sheet of required size is made.
Embodiment 11
Have the preparation (raw material is embodiment 5) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 3 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Solve agent and crosslinking agent, control temperature obtains uniform mixture after being kneaded 15 minutes under conditions of 60 DEG C, then with molding machine pressure
The sheet of required size is made.
Embodiment 12
Have the preparation (raw material is embodiment 6) of abstergent rubber material, includes the following steps:
Raw rubber is carried out to plasticate 3 minutes in mixer, open mill, sequentially add reinforcing filler, heat resistanceheat resistant tearing agent, watt
Agent and crosslinking agent are solved, control temperature obtains uniform mixture after being kneaded 6 minutes under conditions of 80 DEG C, then is suppressed with molding machine
At the sheet of required size.
Embodiment 13
Framework material is made of following methods: the determination tire to be cleaned (225 tire of Deng Lupu) mold chooses this wheel
The finished tire that placenta is produced, front crown thickness is on 13mm or so (crown decorative pattern depth 7mm, crown thickness 6mm), sidewall
Thickness 5mm all polishes off the crown decorative pattern of 7mm thickness and the decorative pattern on sidewall using tools such as polishing machines, re-polishing 1mm thickness
The sidewall of crown and 1mm thickness.
Embodiment 14
Framework material is made of following methods: the determination tire-mold to be cleaned, and is chosen and produced with model tire-mold
Unqualified tire out, all removes tyre surface and sidewall decorative pattern, and re-extends the tire of the crown for removing 1mm thickness and 1mm thickness
Side.
Embodiment 15
It is 300mm that width, which is made, in the abstergent rubber material of tool prepared by embodiment 7, with a thickness of 5mm's or so
Sheet material is covered on the framework material of the preparation of embodiment 13 two layers, and the overall thickness of such rubber material is in 10mm, it will be able to guarantee
It can be completely filled with die cavity when molding vulcanization, be fabricated to mold cleaning tire base, then the mold cleaning tire base is placed in tire-mold, closed
Mould vulcanizes 10 minutes in 175 DEG C of temperature, pressure 2MPa, cleans the dirty of tire-mold surface.Mold cleaning tire base is taken out in die sinking,
The tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, framework material is recycled, framework material may be reused.
Embodiment 16
The abstergent rubber material of tool prepared by embodiment 8 is covered on framework material prepared by embodiment 13,
The 1mm for making the material thickness of covering be greater than former decorative pattern overall thickness is fabricated to mold cleaning tire base, then the mold cleaning tire base is placed on tire
In mold, molding vulcanizes 15 minutes in 165 DEG C of temperature, pressure 1MPa, cleans the dirty of tire-mold surface.Die sinking is taken out
Film tire base is washed, the tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, recycles framework material, framework material can repeat to make
With.
Embodiment 17
The abstergent rubber material of tool prepared by embodiment 9 is covered on framework material prepared by embodiment 13,
The 3mm for making the material thickness of covering be greater than former decorative pattern overall thickness is fabricated to mold cleaning tire base, then the mold cleaning tire base is placed on tire
In mold, molding vulcanizes in 185 DEG C of temperature, pressure 3MPa, cleans the dirty of tire-mold surface for 5 minutes.Die sinking is taken out
Film tire base is washed, the tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, recycles framework material, framework material can repeat to make
With.
Embodiment 18
The abstergent rubber material of tool prepared by embodiment 10 is covered on framework material prepared by embodiment 14,
The 2mm for making the material thickness of covering be greater than former decorative pattern overall thickness is fabricated to mold cleaning tire base, then the mold cleaning tire base is placed on tire
In mold, molding vulcanizes in 175 DEG C of temperature, pressure 2MPa, cleans the dirty of tire-mold surface for 10 minutes.Die sinking is taken out
Film tire base is washed, the tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, recycles framework material, framework material can repeat to make
With.
Embodiment 19
The abstergent rubber material of tool prepared by embodiment 11 is covered on framework material prepared by embodiment 14,
The 1mm for making the material thickness of covering be greater than former decorative pattern overall thickness is fabricated to mold cleaning tire base, then the mold cleaning tire base is placed on tire
In mold, molding vulcanizes in 165 DEG C of temperature, pressure 1MPa, cleans the dirty of tire-mold surface for 15 minutes.Die sinking is taken out
Film tire base is washed, the tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, recycles framework material, framework material can repeat to make
With.
Embodiment 20
The abstergent rubber material of tool prepared by embodiment 12 is covered on framework material prepared by embodiment 14,
The 3mm for making the material thickness of covering be greater than former decorative pattern overall thickness is fabricated to mold cleaning tire base, then the mold cleaning tire base is placed on tire
In mold, molding vulcanizes in 185 DEG C of temperature, pressure 3MPa, cleans the dirty of tire-mold surface for 5 minutes.Die sinking is taken out
Film tire base is washed, the tyre surface of mold cleaning tire base and sidewall decorative pattern are all removed, recycles framework material, framework material can repeat to make
With.
Effect and efficiency comparative are carried out with regard to five kinds of cleaning techniques below, such as table 2
Table 2
This method attainable beneficial effect of institute there are also following several, can by following table with other several cleaning ways
Comparison find out.
Table 3
It is demonstrated experimentally that 16,17,18,19,20 cleaning effect of embodiment and efficiency are similar to embodiment 15.
Effect shown by the table 2 of embodiment 16,17,18,19,20 is similar to embodiment 15.
Embodiment 15-20 test result such as table 4.
Table 4:
| Project | Whether there is fracture at gas vent | It cleans out completely and needs number |
| Embodiment 15 | It is no | 2 |
| Embodiment 16 | It is no | 3 |
| Embodiment 17 | It is no | 3 |
| Embodiment 18 | It is no | 3 |
| Embodiment 19 | It is no | 2 |
| Embodiment 20 | It is no | 3 |
Judge that rubber material physical mechanical property standard up to standard is not broken at gas vent after it vulcanizes, judges
The standard of its mold cleaning effect quality is to see that it is cleaned out completely to need number, and number is better more obvious results fruit of saving your breath.
The present invention does not need dismounting tire-mold, does not need lifting temperature, does not need the personnel of profession and setting for profession yet
It is standby, the on-line cleaning of tire-mold may be implemented completely.This method is easy to operate, and cleaning effect is good, and cleaning efficiency is high, does not pollute
Environment does not damage mold.
Claims (10)
1. tire-mold on-line cleaning method, it is characterized in that including the following steps: to cover having abstergent rubber material
It is fabricated to mold cleaning tire base on framework material, then the mold cleaning tire base is placed in tire-mold and is vulcanized, cleans tire-mold table
Face it is dirty.
2. according to the method described in claim 1, it is characterized in that the tool following raw material systems of abstergent rubber material
At: 100 parts by weight of raw rubber, reinforcing filler 40-60 parts by weight, heat resistanceheat resistant tear agent 3-10 parts by weight, disintegrate agent 8-20 parts by weight
With crosslinking agent 1-5 parts by weight.
3. according to the method described in claim 2, it is characterized in that the raw rubber is the combination of ethylene propylene diene rubber and butadiene rubber
Object.
4. according to the method described in claim 2, it is characterized in that the reinforcing filler is precipitated silica, vapor phase method hard charcoal
At least one of black and carbon black.
5. according to the method described in claim 2, it is characterized in that heat resistanceheat resistant tearing agent is the alicyclic hydrocarbon resin of hydrogenation modification.
6. according to the method described in claim 2, it is characterized in that described disintegrate agent as higher aliphatic acids, hydrosulphate and sulfonic acid
At least one of compound.
7. according to the method described in claim 2, it is characterized in that the higher aliphatic acids is lauric acid, oleic acid, stearic acid, Asia
Oleic acid or ricinoleic acid；The hydrosulphate is sulfated castor oil or lauryl sodium sulfate；The sulphonic acid compound is two pungent
Base sodium sulfosuccinate or neopelex.
8. according to the method described in claim 2, it is characterized in that the crosslinking agent is bis- (the tert-butyl mistakes of 2,5- dimethyl -2,5-
Oxygroup) at least one of hexane and dual-tert-butyl peroxy isopropyl base benzene.
9. according to the method described in claim 1, it is characterized in that the condition of vulcanization be that 175 DEG C ± 10 DEG C of temperature, pressure arrive for 1
3MPa vulcanizes 5 to 15 minutes.
10. according to the method described in claim 1, it is characterized in that the framework material is made of following methods: determination will clean
Tire-mold, and the finished tire or unqualified wheel choosing the tire-mold or being produced with model tire-mold
Tire all removes tyre surface and sidewall decorative pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508507.2A CN109593240B (en) | 2018-12-11 | 2018-12-11 | Online cleaning method for tire mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508507.2A CN109593240B (en) | 2018-12-11 | 2018-12-11 | Online cleaning method for tire mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109593240A true CN109593240A (en) | 2019-04-09 |
| CN109593240B CN109593240B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508507.2A Active CN109593240B (en) | 2018-12-11 | 2018-12-11 | Online cleaning method for tire mold |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001293730A (en) * | 2000-04-17 | 2001-10-23 | Bridgestone Corp | Rubber composition for washing mold |
| CN102766284A (en) * | 2012-08-07 | 2012-11-07 | 天津德高化成电子材料有限公司 | Tasteless mold cleaning material for semiconductor packaging mold |
| CN103205032A (en) * | 2013-03-14 | 2013-07-17 | 西北工业大学 | Mold cleaning rubber for in-place mold cleaning and preparation method of mold cleaning rubber |
| CN106554571A (en) * | 2015-09-25 | 2017-04-05 | 厦门三龙达胶业有限公司 | Mold cleaning glue in situ |
-
2018
- 2018-12-11 CN CN201811508507.2A patent/CN109593240B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001293730A (en) * | 2000-04-17 | 2001-10-23 | Bridgestone Corp | Rubber composition for washing mold |
| CN102766284A (en) * | 2012-08-07 | 2012-11-07 | 天津德高化成电子材料有限公司 | Tasteless mold cleaning material for semiconductor packaging mold |
| CN103205032A (en) * | 2013-03-14 | 2013-07-17 | 西北工业大学 | Mold cleaning rubber for in-place mold cleaning and preparation method of mold cleaning rubber |
| CN106554571A (en) * | 2015-09-25 | 2017-04-05 | 厦门三龙达胶业有限公司 | Mold cleaning glue in situ |
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| Publication number | Publication date |
|---|---|
| CN109593240B (en) | 2021-10-15 |
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