CN109987910A - Stereolithography apparatus die surface handles material and its preparation and processing method - Google Patents
Stereolithography apparatus die surface handles material and its preparation and processing method Download PDFInfo
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- CN109987910A CN109987910A CN201711468107.9A CN201711468107A CN109987910A CN 109987910 A CN109987910 A CN 109987910A CN 201711468107 A CN201711468107 A CN 201711468107A CN 109987910 A CN109987910 A CN 109987910A
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- parts
- die surface
- polyvinyl alcohol
- stereolithography apparatus
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00534—Coating or impregnation materials for plastic surfaces, e.g. polyurethane foams
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention discloses a kind of components and preparation method thereof of stereolithography apparatus die surface processing material；The material is composed of the following components by mass percentage: 4-9 parts of polyvinyl alcohol, 7 parts -15 parts of alumina powder, 80 parts -120 parts of semi-hydrated gypsum powder, 0.5 part -1 part of silane coupling agent, 100 parts of water；The material is combined using organic film forming raw material with inorganic hydraulic raw material, the advantages of having taken into account the two, it is stronger with the adhesion strength of matrix compared with existing finish materials, especially in stereolithography apparatus die surface, there is excellent treatment effect to the surface step of mold.
Description
Technical field
The invention belongs to technical field of surface, and in particular to and stereolithography apparatus die surface handles material, this
Invention further relates to the preparation and processing method of the finish materials.
Background technique
Mold is the important equipment in modern industrial production, and manufacture level directly determines the quality of product, benefit and new
The research and development ability of product.There are many method of traditional moulds manufacture, such as NC milling, plunge grinding, electrical discharge machining.But
Be, these methods when manufacturing labyrinth mold there are the period it is long, at high cost the problems such as.With international competition aggravation and market
Development of globalization, successive generations of products are accelerated, and multi items, small lot become the important productive of die industry.This production
Mode requires to shorten die manufacturing cycle, reduces die manufacturing cost.
Increasing material manufacturing (AM) can be appointed as a kind of important Digitized Manufacturing Technology by three-dimensional digital model direct forming
Anticipate complicated entity structure, eliminate cutter used in traditional material removal (subtracting material manufacture) method, tooling, coolant liquid and its
His auxiliary device has significant cost and odds for effectiveness in single product or small lot producer face.Therefore, AM technology is extensive
Applied to mould industry, the technological progress of labyrinth mold Digitized manufacturing has been pushed.
Stereolithography apparatus technology belongs to the important branch of AM technology, is relatively early appearance, technology relative maturity and application
Wide rapid prototyping technology, when using Stereo Lithography technology manufacture larger size mold, the direct shadow of manufacture efficiency
Ring product parts manufacturing schedule.The characteristics of due to increases material manufacturing technology itself, photocuring die surface step effect be difficult to avoid that,
Especially some small curvature parts of large curved surface, in order to guarantee that surface quality reduces step effect, position disposing way often needs to increase
The support of increasing amount, significant wastage material increase manufacturing time and cost.
And use when being put in a manner of maximum projection plane, efficiency highest, but the small curvature step effect of large curved surface is clearly,
Step width is wider, seriously affects die surface precision, and general processing method is first to carry out blasting treatment to surface, then with greasy
Son polishes after striking off, and blasting treatment not only requires dedicated equipment, also very high to the proficiency requirement of operator, and sandblasting
Processing is bigger to the damage of piece surface dimensional accuracy, and a whole set for the treatment of process is longer when expending.
Summary of the invention
The invention discloses a kind of finish materials of stereolithography apparatus mold, solve in the prior art to AM
Method obtains the problem of long die surface processing time and poor dimensional precision.
The present invention discloses the preparation of the material and its processing methods.
The material is characterized in that its constituent, and the material is at a kind of surface of stereolithography apparatus mold
Material is managed, composed of the following components in mass ratio: 4-9 parts of polyvinyl alcohol, 7-15 parts of alumina powder, semi-hydrated gypsum powder 80-120
Part, 0.5-1 parts of silane coupling agent, 100 parts of water.
The material is further characterized in that:
Silane coupling agent is one of KH-550, KH-560 or KH-570.
The partial size of polyvinyl alcohol is not more than 150 μm, and purity is not less than 99.9%.
Alumina powder uses alpha-aluminium oxide, and partial size is not more than 3 μm.
The presetting period of semi-hydrated gypsum powder is greater than 5min.
The preparation method of the material, it is characterised in that implemented using following steps.
Step 1, it is spare that each component is weighed in mass ratio:
Including 4-9 parts of polyvinyl alcohol, 7-15 parts of alumina powder, 80-120 parts of semi-hydrated gypsum powder, 0.5-1 parts of silane coupling agent,
100 parts of water.
Step 2, the weighed polyvinyl alcohol of step 1 is added to the water, stirs evenly, obtains polyvinyl alcohol water solution.
Step 3, silane coupling agent and alumina powder are sequentially added in the polyvinyl alcohol water solution obtained in step 2,
It stirs evenly, obtains solution a.
Step 4, semi-hydrated gypsum powder is added in the solution a obtained in step 3, stirs evenly to get surface treatment material is arrived
Material.
The present invention discloses the processing methods of the material, are specifically implemented according to the following steps:
Step a, using 80-240 mesh sand paper (voluntarily being selected according to desired surface roughness) polishing stereolithography apparatus mould
Has the support burr on surface, and it is clean by surface wipes with absorbent cotton to dip dehydrated alcohol；
Step b, by stereolithography apparatus die surface processing material with wool brush brush in die surface；
The mold handled through step b is hung 6 ~ 7h by step c at normal temperature, keeps processing material fully hardened；
Die surface is polished using 800-1200 mesh sand paper (voluntarily being selected according to desired surface roughness), that is, located by step d
Reason is completed.
The beneficial effects of the present invention are:
The advantages of present invention is made of the method for organic film-forming material and inorganic hydraulic Material cladding, combines the two, with
Existing processing material is compared, stronger with the adhesion strength of matrix, especially strong in Stereo Lithography die surface adhesion strength, to mould
The big step in the surface of tool has excellent treatment effect, and raw material sources are extensive, environmentally protective to prepare simply, has good
Applicability and generalization.
Specific embodiment
The present invention is described in detail With reference to embodiment.
Stereolithography apparatus die surface of the present invention handles material, composed of the following components in mass ratio: polyvinyl alcohol
4-9 parts, 7-15 parts of alumina powder, 80-120 parts of semi-hydrated gypsum powder, 0.5-1 parts of silane coupling agent, 100 parts of water；Wherein, silane
Coupling agent is one of KH-550, KH-560 or KH-570；The partial size of polyvinyl alcohol is not more than 150 μm, and purity is not less than
99.9%；Alumina powder uses alpha-aluminium oxide, and partial size is not more than 3 μm；The presetting period of semi-hydrated gypsum powder is greater than 5min.
The preparation method of stereolithography apparatus die surface processing material of the present invention, is specifically implemented according to the following steps:
Step 1, composed of the following components in mass ratio:
4-9 parts of polyvinyl alcohol, 7-15 parts of alumina powder, 80-120 parts of semi-hydrated gypsum powder, 0.5-1 parts of silane coupling agent, water 100
Part.
Step 2, the weighed polyvinyl alcohol of step 1 is added to the water, stirs evenly, obtains polyvinyl alcohol water solution.
Step 3, silane coupling agent and alumina powder are sequentially added in the polyvinyl alcohol water solution obtained in step 2,
It stirs evenly, obtains solution a.
Step 4, semi-hydrated gypsum powder is added in the solution a obtained in step 3, stirs evenly to get surface treatment material is arrived
Material.
The present invention handles the processing method of material using stereolithography apparatus die surface, specifically real according to the following steps
It applies:
Step a using the support burr of 80-240 mesh sand paper polishing stereolithography apparatus die surface, and is dipped with absorbent cotton
Dehydrated alcohol is clean by surface wipes.
Step b, by stereolithography apparatus die surface processing material with wool brush brush in die surface.
The mold handled through step b is hung 6 ~ 7h by step c at normal temperature, keeps processing material fully hardened.
Step d is polished die surface using 800-1200 mesh sand paper, i.e. processing is completed.
Embodiment 1:
Weigh 4 parts of polyvinyl alcohol, 7 parts of alumina powder, 80 parts of semi-hydrated gypsum powder, 0.5 part of KH-550 coupling agent, 100 parts of water；
Polyvinyl alcohol will be weighed to be added to the water, stir evenly, obtain polyvinyl alcohol water solution；
Silane coupling agent and alumina powder are sequentially added in polyvinyl alcohol water solution again, is stirred evenly, solution a is obtained；
Semi-hydrated gypsum powder is added in solution a, stirs evenly to get finish materials are arrived；
It is spare after the completion of prepared by above-mentioned material.
Utilize the processing method of stereolithography apparatus die surface processing material:
Using the support burr of 240 mesh sand paper polishing stereolithography apparatus die surface, and dehydrated alcohol is dipped with absorbent cotton
Surface wipes are clean；
By the above-mentioned stereolithography apparatus die surface processing material wool brush brush prepared in die surface；
The mold for having brushed finish materials is hung into 7h at normal temperature, keeps processing material fully hardened；
Die surface is polished using 1200 mesh sand paper, i.e. processing is completed, treated mold surface roughness Ra=0.15 μm.
Embodiment 2:
Weigh 9 parts of polyvinyl alcohol, 15 parts of alumina powder, 120 parts of semi-hydrated gypsum powder, 1 part of KH-550 coupling agent, 100 parts of water；
Polyvinyl alcohol will be weighed to be added to the water, stir evenly, obtain polyvinyl alcohol water solution；
Silane coupling agent and alumina powder are sequentially added in polyvinyl alcohol water solution again, is stirred evenly, solution a is obtained；
Semi-hydrated gypsum powder is added in solution a, stirs evenly to get finish materials are arrived；
It is spare after the completion of prepared by above-mentioned material.
Utilize the processing method of stereolithography apparatus die surface processing material:
Using the support burr of 100 mesh sand paper polishing stereolithography apparatus die surface, and dehydrated alcohol is dipped with absorbent cotton
Surface wipes are clean；
By the above-mentioned stereolithography apparatus die surface processing material wool brush brush prepared in die surface；
The mold for having brushed finish materials is hung into 7h at normal temperature, keeps processing material fully hardened；
Die surface is polished using 800 mesh sand paper, i.e. processing is completed, the μ of mold surface roughness Ra=0.28 after the completion of handling
m。
Embodiment 3:
Weigh 6.5 parts of polyvinyl alcohol, 11 parts of alumina powder, 100 parts of semi-hydrated gypsum powder, 0.75 part of KH-550 coupling agent, water 100
Part；
Polyvinyl alcohol will be weighed to be added to the water, stir evenly, obtain polyvinyl alcohol water solution；
Silane coupling agent and alumina powder are sequentially added in polyvinyl alcohol water solution again, is stirred evenly, solution a is obtained；
Semi-hydrated gypsum powder is added in solution a, stirs evenly to get finish materials are arrived；
It is spare after the completion of prepared by above-mentioned material.
Utilize the processing method of stereolithography apparatus die surface processing material:
Using the support burr of 180 mesh sand paper polishing stereolithography apparatus die surface, and dehydrated alcohol is dipped with absorbent cotton
Surface wipes are clean；
By the above-mentioned stereolithography apparatus die surface processing material wool brush brush prepared in die surface；
The mold for having brushed finish materials is hung into 6 ~ 7h at normal temperature, keeps processing material fully hardened；
Die surface is polished using 1000 mesh sand paper, i.e. processing is completed, mold surface roughness Ra=0.22 after the completion of handling
μm。
Claims (7)
1. stereolithography apparatus die surface handles material, which is characterized in that composed of the following components by mass percentage: poly-
4 parts -9 parts of vinyl alcohol, 7 parts -15 parts of alumina powder, 80 parts -120 parts of semi-hydrated gypsum powder, 0.5 part -1 part of silane coupling agent, water
100 parts.
2. material as described in claim 1, which is characterized in that the silane coupling agent is in KH-550, KH-560 or KH-570
One kind.
3. material as described in claim 1, which is characterized in that the partial size of the polyvinyl alcohol is not more than 150 μm, and purity is not less than
99.9%。
4. material as described in claim 1, which is characterized in that the alumina powder uses alpha-aluminium oxide, and partial size is not more than 3 μm.
5. material as described in claim 1, which is characterized in that the presetting period of the semi-hydrated gypsum powder is greater than 5min.
6. the preparation method of stereolithography apparatus die surface processing material, which is characterized in that follow the steps below to implement；
Step 1, it is spare that following components is weighed by mass percentage:
4 parts -9 parts of polyvinyl alcohol, 7 parts -15 parts of alumina powder, 80 parts -120 parts of semi-hydrated gypsum powder, 0.5 part -1 of silane coupling agent
Part, 100 parts of water；
Step 2, the weighed polyvinyl alcohol of step 1 is added to the water, stirs evenly, obtains polyvinyl alcohol water solution；
Step 3, silane coupling agent and alumina powder are sequentially added in the polyvinyl alcohol water solution obtained in step 2, are stirred
Uniformly, solution a is obtained；
Step 4, semi-hydrated gypsum powder is added in the solution a obtained in step 3, stirs evenly to get finish materials are arrived.
7. the method being surface-treated using material as described in claim 1, which is characterized in that follow the steps below to implement:
Step a using the support burr of 80-240 mesh sand paper polishing stereolithography apparatus die surface, and is dipped with absorbent cotton
Dehydrated alcohol is clean by surface wipes；
Step b, by stereolithography apparatus die surface processing material with wool brush brush in die surface；
The mold handled through step b is hung 6 ~ 7h by step c at normal temperature, keeps processing material fully hardened；
Step d is polished die surface using 800-1200 mesh sand paper, i.e. processing is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468107.9A CN109987910A (en) | 2017-12-29 | 2017-12-29 | Stereolithography apparatus die surface handles material and its preparation and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468107.9A CN109987910A (en) | 2017-12-29 | 2017-12-29 | Stereolithography apparatus die surface handles material and its preparation and processing method |
Publications (1)
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| CN109987910A true CN109987910A (en) | 2019-07-09 |
Family
ID=67109356
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| CN201711468107.9A Pending CN109987910A (en) | 2017-12-29 | 2017-12-29 | Stereolithography apparatus die surface handles material and its preparation and processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776388A (en) * | 2005-12-15 | 2006-05-24 | 西安交通大学 | Photo cured resin-metal composite aircraft wind tannel model manufacturing and assembling |
| CN101081388A (en) * | 2007-07-03 | 2007-12-05 | 西安交通大学 | Method for reducing light-cured rapid prototype component surface roughness |
| KR20150092467A (en) * | 2014-02-05 | 2015-08-13 | 조영태 | Bust made of powdered bones by 3D printer |
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| CN105666750A (en) * | 2016-03-17 | 2016-06-15 | 路文虎 | Preparation process and casting mould for cast product based on 3D printing technology |
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Application publication date: 20190709 |