CN112847995A - Intelligent stress sensing type composite material machine tool body and preparation method thereof - Google Patents
Intelligent stress sensing type composite material machine tool body and preparation method thereof Download PDFInfo
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- CN112847995A CN112847995A CN202110051181.0A CN202110051181A CN112847995A CN 112847995 A CN112847995 A CN 112847995A CN 202110051181 A CN202110051181 A CN 202110051181A CN 112847995 A CN112847995 A CN 112847995A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
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- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an intelligent stress sensing type composite material machine tool body and a preparation method thereof, wherein the machine tool body is made of a high-performance composite material and is formed by mixing and casting the following raw materials in proportion: 6-12 parts of epoxy resin, 1-4 parts of curing agent, 0.5-3 parts of diluent, 15-20 parts of filler, 20-40 parts of quartz sand, 40-70 parts of crushed stone and 0.001-10 parts of stress sensing particles. The composite material machine tool body prepared by the raw material formula and the preparation method provided by the invention has the advantages of high strength, small deformation, good size stability, good thermal stability, great improvement on production efficiency and the like, realizes accurate stress distribution of the machine tool body by compounding with stress sensing particles, and controls the cost within a range acceptable to the market.
Description
Technical Field
The invention relates to an intelligent stress sensing type composite material machine tool body and a preparation method thereof.
Background
The lathe bed is the most important basic component of the machine tool, is the measuring standard of various geometric accuracies of the machine tool, and when the lathe bed is used as a base of the whole machine, other parts are carried on the lathe bed to work. In the casting process of a basic large part of the numerical control machine tool, due to the influence of factors such as a complex structure, a casting technology and the like, residual stress is generated inside the basic large part, and the precision of the machine tool is influenced. The accurate acquisition of the stress distribution of the lathe bed is one of the important ways for reasonably evaluating the precision retentivity of the lathe. At present, the problem of poor precision retentivity commonly exposed in the service process of domestic machine tools becomes a bottleneck for restricting the competitiveness of the domestic machine tools, and meanwhile, most machine tool bodies are made of cast iron materials, the dynamic characteristics of the machine tool bodies far cannot meet the requirements of the precision machine tools for increasing development, and the key indexes such as vibration resistance, thermal stability, production period, corrosion resistance and the like need to be improved urgently.
Disclosure of Invention
The invention aims to provide an intelligent stress sensing type composite material machine tool body with high strength, small deformation, good dimensional stability and temperature resistance and a preparation method thereof aiming at the defects of the prior art, and the stress distribution feedback casting design is detected in an optical mode by adding mechanoluminescence sensing particles.
The purpose of the invention is realized by the following technical scheme:
a preparation method of an intelligent stress sensing type composite material machine tool body is prepared by mixing the following raw materials in parts by weight:
6 to 12 parts by weight of an epoxy resin,
2-4 parts by weight of a curing agent,
0.5 to 3 parts by weight of a diluent dibutyl phthalate,
15-20 parts by weight of filler with the granularity of 0.1-500 mu m;
20-40 parts by weight of quartz sand with the granularity of 1-3 mm;
40-70 parts by weight of crushed stone, the outer diameter of which is 3-20mm, and the size of the crushed stone is less than one fifth of the wall thickness of the machine tool;
0.001-10 parts by weight of stress sensing particles, which are mechanoluminescence particles comprising CaZnOS: Mn and SrZnOS: Mn, and having a particle size of 5-50 μm;
the preparation steps are as follows:
1) weighing epoxy resin, a diluent and a curing agent, and uniformly stirring to obtain a gelling agent liquid;
2) mixing crushed stone, filling material and quartz sand, adding gelling agent liquid, and stirring in a planetary stirrer for 1-10 minutes until the filling material cannot be dried, so as to obtain a mixture;
3) fixing the mould on a vibration table, smearing release agent silicone oil, pouring the stirred mixture into the mould for vibration until no bubbles are discharged;
4) unloading the die from the vibrating table, keeping the temperature at room temperature and drying, standing for 48 hours, and then removing the die to obtain a machine tool body;
adding the stress sensing particles into the crushed stone, the filler and the quartz sand in the step 2) by an external doping method for mixing; or the stress sensing particles are mixed with the gelling agent liquid and coated on the machine tool body prepared in the step 4) to form stress transmission
And (3) photosensitive coating.
The curing agent is at least one of ethylenediamine and phenolic amine.
The filler is at least one of quartz powder and aluminum oxide powder.
The crushed stone comprises cobblestones, crushed stones and ceramic blocks.
The coating proportion of the stress sensing particles accounts for 10-80% of the weight of the coating components.
An intelligent stress sensing type composite material machine tool body is prepared by the method.
Compared with the prior art, the invention has the following advantages and effects:
the stress sensing type composite material machine tool body prepared by the raw material formula and the preparation method provided by the invention has the advantages of high strength, small deformation, good dimensional stability, good thermal stability, great improvement of production efficiency and the like, and can be widely used for machine tool bodies.
The stress sensing type composite material lathe bed is adopted to replace a metal lathe bed or a natural granite lathe bed in the prior art, so that the environmental pollution caused in the production process of metal castings can be reduced, the cost is saved, and the stress distribution of the lathe bed is accurately obtained in the preparation and processing process, so that the high-precision processing of the lathe bed is realized.
Drawings
FIG. 1 is a fluorescence spectrum of a SrZnOS/Mn doped photoluminescent powder composite material under different stresses.
FIG. 2 is a fluorescence spectrum of a doped CaZnOS/Mn mechanoluminescence composite material under two different stresses.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
Example one
The intelligent stress sensing composite material lathe bed comprises 6 parts by weight of epoxy resin, 2 parts by weight of curing agent, 1 part by weight of diluent, 20 parts by weight of filler, 25 parts by weight of quartz sand, 46 parts by weight of crushed stone and 1 part by weight of stress sensing particles. The curing agent is ethylenediamine, the filler is quartz powder, the crushed stones are cobblestones, rock blocks and ceramic blocks, the stress sensing particles are SrZnOS/Mn powder, the granularity of the filler is 100 mu m, the granularity of the quartz sand is 1mm, the outer diameters of the crushed stones are 5-20mm, and the stress sensing particles are 20 mu m.
The preparation method comprises the following steps:
(1) weighing epoxy resin, a diluent and a curing agent to prepare gelling agent liquid;
(2) mixing crushed stone, quartz sand and filler, adding gelling agent liquid, and stirring for 10 minutes in a planetary stirrer to prepare a mixture;
(3) fixing the mould on a vibration table, smearing release agent silicone oil, pouring the stirred mixture into the mould, and vibrating until no bubbles are discharged;
(4) unloading the die from the vibrating table, placing the die in a room for 48 hours, and then removing the die to obtain a machine tool body;
(5) and (3) mixing the stress sensing particles with gelling agent liquid, and coating the mixture on the lathe bed, wherein the coating proportion accounts for 60% of the weight proportion of the coating to form a stress sensing optical coating, so that the lathe bed with the stress sensing function is prepared.
FIG. 1 is a fluorescence spectrum of a SrZnOS/Mn doped photoluminescent powder composite material under different stresses, wherein the stress intensity can be deduced from the luminescence intensity.
The finished lathe bed is tested to obtain the following performance parameters:
density: 2.3kg/dm3
Compressive strength: 710N/mm2
Modulus of elasticity: 38kN/mm2
Bending tensile strength: 35N/mm2
Coefficient of linear expansion: 15X 10-6/K
Poisson ratio: 0.25.
the test data show that the invention has the advantages of high strength, small deformation, good dimensional stability, good thermal stability and the like.
Example two
The intelligent stress sensing composite material lathe bed comprises 12 parts by weight of epoxy resin, 4 parts by weight of curing agent, 2 parts by weight of diluent, 15 parts by weight of filler, 27 parts by weight of quartz sand, 40 parts by weight of crushed stone and 2 parts by weight of stress sensing particles. The stress sensing particle is CaZnOS/Mn powder, the granularity of the filling material is 200 mu m, the granularity of the quartz sand is 2mm, the outer diameter of the crushed stone is 5-18mm, and the stress sensing particle is 20 mu m.
The preparation method comprises the following steps:
(1) weighing epoxy resin, a diluent and a curing agent to prepare gelling agent liquid;
(2) mixing crushed stone, quartz sand, stress sensing particles and filler, adding gelling agent liquid, and stirring in a planetary stirrer for 10 minutes to prepare a mixture;
(3) fixing the mould on a vibration table, smearing release agent silicone oil, pouring the stirred mixture into the mould, and vibrating until no bubbles are discharged;
(4) and (3) unloading the die from the vibrating table, placing the die in a room, keeping the room temperature and drying the die, and removing the die after the die is placed for 48 hours to obtain the lathe bed with the stress sensing function.
FIG. 2 is a fluorescence spectrum of a CaZnOS/Mn doped mechanoluminescence composite material under two different stresses applied in the present invention, and the stress intensity can be deduced from the luminescence intensity.
The finished lathe bed is tested to obtain the following performance parameters:
density: 2.4kg/dm3
Compressive strength: 705N/mm2
Modulus of elasticity: 40Kn/mm2
Bending tensile strength: 38N/mm2
Coefficient of linear expansion: 13X 10-6/K
Poisson ratio: 0.24.
the test data show that the invention has the advantages of high strength, small deformation, good dimensional stability, good thermal stability and the like.
The embodiments in the above description can be further combined or replaced, and the embodiments are only described as preferred examples of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention belong to the protection scope of the present invention. The scope of the invention is given by the appended claims and any equivalents thereof.
Claims (6)
1. A preparation method of an intelligent stress sensing type composite material machine tool body is characterized by comprising the following steps: the compound is prepared by mixing the following raw materials in parts by weight:
6 to 12 parts by weight of an epoxy resin,
2-4 parts by weight of a curing agent,
0.5 to 3 parts by weight of a diluent dibutyl phthalate,
15-20 parts by weight of filler with the granularity of 0.1-500 mu m;
20-40 parts by weight of quartz sand with the granularity of 1-3 mm;
40-70 parts by weight of crushed stone, the outer diameter of which is 3-20mm, and the size of the crushed stone is less than one fifth of the wall thickness of the machine tool;
0.001-10 parts by weight of stress sensing particles, which are mechanoluminescence particles comprising CaZnOS: Mn and SrZnOS: Mn, and having a particle size of 5-50 μm;
the preparation steps are as follows:
1) weighing epoxy resin, a diluent and a curing agent, and uniformly stirring to obtain a gelling agent liquid;
2) mixing crushed stone, filling material and quartz sand, adding gelling agent liquid, and stirring in a planetary stirrer for 1-10 minutes until the filling material cannot be dried, so as to obtain a mixture;
3) fixing the mould on a vibration table, smearing release agent silicone oil, pouring the stirred mixture into the mould for vibration until no bubbles are discharged;
4) unloading the die from the vibrating table, keeping the temperature at room temperature and drying, standing for 48 hours, and then removing the die to obtain a machine tool body;
adding the stress sensing particles into the crushed stone, the filler and the quartz sand in the step 2) by an external doping method for mixing; or mixing the stress sensing particles with gelling agent liquid, and coating the mixture on the machine tool body prepared in the step 4) to form the stress sensing optical coating.
2. The method of claim 1, wherein: the curing agent is at least one of ethylenediamine and phenolic amine.
3. The method of claim 1, wherein: the filler is at least one of quartz powder and aluminum oxide powder.
4. The method of claim 1, wherein: the crushed stone comprises cobblestones, crushed stones and ceramic blocks.
5. The method of claim 1, wherein: the coating proportion of the stress sensing particles accounts for 10-80% of the weight of the coating components.
6. The utility model provides an intelligence stress sensing type combined material lathe bed which characterized in that: prepared by the method of any one of claims 1 to 5.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290584A (en) * | 2021-12-28 | 2022-04-08 | 常州高鼎新材料科技有限公司 | Preparation process method of non-metallic mineral casting |
| CN116426283A (en) * | 2023-04-25 | 2023-07-14 | 河北建筑工程学院 | Orange fluorescent powder and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102344265A (en) * | 2011-07-05 | 2012-02-08 | 济南鲁洋科技有限公司 | Mechanical component mineral casting and mechanical component preparation method using the same |
| CN102634335A (en) * | 2012-03-27 | 2012-08-15 | 青岛大学 | Piezoelectric elastic-stress luminescent material and production method thereof |
| CN106554169A (en) * | 2015-09-30 | 2017-04-05 | 南京理工大学 | A kind of haydite potting resin mineral composite and preparation method thereof |
-
2021
- 2021-01-14 CN CN202110051181.0A patent/CN112847995A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344265A (en) * | 2011-07-05 | 2012-02-08 | 济南鲁洋科技有限公司 | Mechanical component mineral casting and mechanical component preparation method using the same |
| CN102634335A (en) * | 2012-03-27 | 2012-08-15 | 青岛大学 | Piezoelectric elastic-stress luminescent material and production method thereof |
| CN106554169A (en) * | 2015-09-30 | 2017-04-05 | 南京理工大学 | A kind of haydite potting resin mineral composite and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290584A (en) * | 2021-12-28 | 2022-04-08 | 常州高鼎新材料科技有限公司 | Preparation process method of non-metallic mineral casting |
| CN116426283A (en) * | 2023-04-25 | 2023-07-14 | 河北建筑工程学院 | Orange fluorescent powder and preparation method thereof |
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