CN103274694A - Ceramic rice milling emery roll and manufacturing method thereof - Google Patents
Ceramic rice milling emery roll and manufacturing method thereof Download PDFInfo
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- CN103274694A CN103274694A CN2013102522853A CN201310252285A CN103274694A CN 103274694 A CN103274694 A CN 103274694A CN 2013102522853 A CN2013102522853 A CN 2013102522853A CN 201310252285 A CN201310252285 A CN 201310252285A CN 103274694 A CN103274694 A CN 103274694A
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Abstract
The invention relates to a ceramic rice milling emery roll and a manufacturing method thereof. The emery roll comprises raw materials of silicon carbide, a bonding agent, yellow dextrin powder and yellow dextrin liquid; the bonding agent comprises potassium feldspar powder, pot clay powder, quartz powder and borosilicate glass powder; and the ceramic rice milling emery roll is formed by blending, mixing, blank forming, high temperature firing and processing the raw materials. The manufacturing method comprises the following steps: preparing the bonding agent; mixing the bonding agent and the yellow dextrin powder; mixing the silicon carbide and the yellow dextrin liquid; then mixing the two mixtures; and performing molding and sintering processing. The ceramic rice milling emery roll and the manufacturing method thereof have the advantages that manufacturability and quality of manufacturing a product are improved, the ceramic emery roll firing temperature is reduced, the firing time is shortened, the manufacturing cost is reduced, the period is shortened, and the production efficiency and the economic benefits of the product are improved.
Description
Technical field
The present invention relates to a kind of ceramic rice-milling roller and preparation method thereof, belong to sand roller technical field.
Background technology
Existing ceramic rice-milling roller, mixed according to a certain percentage by silicon carbide abrasive particles, ceramic bond, yellow starch gum powder and yellow starch gum liquid, and be pressed into certain density sand roller blank through brute force, by roughing profile after the cryodrying, high-temperature firing becomes the ceramic sand roller of particular stiffness and intensity again, and further the precision work profile obtains sand roller finished product then.The prior art raw material is formed and there is deficiency in proportioning, influences manufacture craft and the quality of product; In addition, high-temperature firing is the key that the sand roller is made, and in the existing manufacture method, about 41 hours of kiln firing time, firing temperature is 1350 ℃, and activity time is long, the temperature height, and energy consumption is big, the cost of manufacture height; Also have, in blank making processes, there are certain problem in batching, mixing step, influence the raw material uniformity coefficient of blank and the intensity of sand roller molded blank.
Summary of the invention
The objective of the invention is to, overcome the shortcoming of prior art, a kind of ceramic rice-milling roller and preparation method thereof is provided, improve manufacturability and the quality of production, reduce ceramic sand roller firing temperature, shorten the firing time, reduce manufacturing cost, shortening cycle, enhance productivity and the economic benefit of product.
For realizing the object of the invention, the ceramic rice-milling roller technical scheme that adopts is:
A kind of ceramic rice-milling roller, its material component is counted with weight part: 80～120 parts in silicon carbide, 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder, 3～5 parts of yellow starch gum liquid; Described wedding agent comprises feldspar in powder, potter's clay powder, silica powder and boron glass powder; Compact density is 2.1～3g/cm
3Described raw material is through batch mixes, blank moulding, high-temperature firing and process.
The further technical scheme of above-mentioned ceramic rice-milling roller is:
Described ceramic rice-milling roller, described its concentration of yellow starch gum liquid is 30%～40%.
Described ceramic rice-milling roller, its wedding agent by weight, wherein each raw material accounts for the per-cent choosing value scope of wedding agent total amount and is: feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%.
Described ceramic rice-milling roller, its material component is counted with weight part: 90～110 parts in silicon carbide, 22～28 parts of wedding agents, 3.0～4 parts in yellow starch gum powder, 3.2～4.2 parts of yellow starch gum liquid;
Described ceramic rice-milling roller, its material component is counted with weight part when preparation: 95～100 parts in silicon carbide, 24～26 parts of wedding agents, 3.2～4.2 parts in yellow starch gum powder, 3.5～4.5 parts of yellow starch gum liquid;
Described ceramic rice-milling roller, its material component is counted with weight part when preparation: 100 parts in silicon carbide, 25 parts of wedding agents, 3.5 parts in yellow starch gum powder, 4 parts of yellow starch gum liquid.
Described ceramic rice-milling roller, its carborundum granularity are CF16～CF60.Pottery rice-milling roller hardness is P; Compact density is 2.35g/cm
3
Described ceramic rice-milling roller, it is shaped as round shape, cylindrical mill groove and louvre radially; Sand roller center have can with the metal-cored axis hole of fixedlying connected of sand roller.
A kind of ceramic rice-milling roller making method of the present invention, step comprises:
The first step: it is standby that the percentage that accounts for the wedding agent total amount by raw material is recently prepared wedding agent, and wherein feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%;
Second step: get 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder is poured mixer into, mixes the back and takes out, and the container of packing into is stand-by;
The 3rd step: get 80～120 parts in silicon carbide, 3～5 parts of yellow starch gum liquid are poured into and are stopped after mixer mixes stirring, and treat next step;
The 4th step: the compound that the compound of the first step was poured in the mixer with second step stirs, and obtaining holding with a firm grip with the hand material grasping can be agglomerating, the mixed material of loosing one's grip and can scatter;
The 5th step: carry out moldedly with mixed material, obtain molded blank;
The 6th step: the demoulding, sintering and processing namely obtain finished product.
Described ceramic rice-milling roller making method is characterized in that, the first step and the mixing time in second step were respectively 3～6 minutes, and the churning time in the 3rd step is 5～10 minutes.
The further making method of pottery rice-milling roller is:
Described ceramic rice-milling roller making method, described sintering, its temperature is greater than 1100 ℃, and less than 1200 ℃, sintering time is 35～38 hours.
Described ceramic rice-milling roller making method, described sintering, its temperature is 1180 ℃, sintering time is 37 hours.
Technique effect of the present invention is:
1, this sand roller product is made main composition with silicon carbide abrasive particles, adds materials such as ceramic bond, has guaranteed that the ceramic sand roller possesses good manufacturability and enough intensity and good grinding performances.
2, at wedding agent with during the yellow starch gum powder mixes, and silicon carbide uses yellow starch gum powder and yellow starch gum liquid as wetting agent respectively with during yellow starch gum liquid mixes, and is conducive to even mixing, makes sand roller molded blank possess the intensity of getting well simultaneously.
4, firing temperature is reduced to below 1200 ℃ by 1350 ℃ of prior art, descends more than 150 ℃, and save energy more is conducive to the control of sintering quality simultaneously.
5, the firing time is shortened to more than 37 hours by 41 hours of prior art, shortens 4 hours at least.
In a word, making method activity time of the present invention shortens, and sintering temperature descends, and energy consumption is low, has reduced cost of manufacture, constant product quality, wearing quality height.
Description of drawings
Fig. 1 is that the present invention's pottery rice-milling roller structure reaches and the metal-cored synoptic diagram that is connected of sand roller;
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1-sand roller, 2-sand roller is metal-cored, the 3-groove of milling, 4-is louvre radially, 5-sand roller cephalomere, 6-sand roller periproct.
Embodiment
Be described further as follows to the present invention's pottery rice-milling roller and preparation method thereof in conjunction with the embodiments:
Embodiment 1:Be a basic embodiment of the present invention.A kind of ceramic rice-milling roller, its material component is counted with weight part: 80～120 parts in silicon carbide, 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder, 3～5 parts of yellow starch gum liquid; Described wedding agent comprises feldspar in powder, potter's clay powder, silica powder and boron glass powder; Compact density is 2.1～3g/cm
3Above-mentioned raw materials is through batch mixes, blank moulding, high-temperature firing and process.
Embodiment 2:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, described yellow starch gum liquid concentration is 30%～40%.Described concentration is formulated by yellow starch gum raw material and lysate, and during preparation, by weight, wherein the yellow starch gum raw material is 30%～40%.Described yellow starch gum raw material is starchy material, and lysate is water.The yellow starch gum powder is to be made through low hydrolysis, purification, spraying drying by starchy material, does not contain the starch derivative of free starch.
Embodiment 3:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, described wedding agent by weight, wherein each raw material accounts for the per-cent choosing value scope of wedding agent total amount and is: feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%.
Embodiment 4:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, its material component is counted with weight part when preparation: 90～110 parts in silicon carbide, 22～28 parts of wedding agents, 3.0～4 parts in yellow starch gum powder, 3.2～4.2 parts of yellow starch gum liquid;
Embodiment 5:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, its material component is counted with weight part when preparation: 95～100 parts in silicon carbide, 24～26 parts of wedding agents, 3.2～4.2 parts in yellow starch gum powder, 3.5～4.5 parts of yellow starch gum liquid;
Embodiment 6:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, its material component is counted with weight part when preparation: 100 parts in silicon carbide, 25 parts of wedding agents, 3.5 parts in yellow starch gum powder, 4 parts of yellow starch gum liquid.
Embodiment 7:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, described carborundum granularity is F16～F60; Sand roller hardness is P, and compact density is 2.35g/cm
3
Embodiment 8:Be the further embodiment of ceramic rice-milling roller, as different from Example 1, as shown in Figure 1, 2, described ceramic rice-milling roller, it is shaped as round shape, cylindrical mill groove 3 and louvre 4 radially; Sand roller 1 center has the axis hole that can fixedly connected with sand roller metal-cored 2, described fixedly connected mainly be bonding; Sand roller 1 two ends cylindrical has sand roller cephalomere 5 and sand roller periproct 6 respectively.
Embodiment 9:Be a kind of basic embodiment of ceramic rice-milling roller making method of the present invention, its step comprises:
The first step: it is standby that the percentage that accounts for the wedding agent total amount by raw material is recently prepared wedding agent, and wherein feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%;
Second step: get 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder is poured mixer into, mixes the back and takes out, and the container of packing into is stand-by;
The 3rd step: get 80～120 parts in silicon carbide, 3～5 parts of yellow starch gum liquid are poured into and are stopped after mixer mixes stirring, and treat next step;
The 4th step: the compound that the compound of the first step was poured in the mixer with second step stirs, and obtaining holding with a firm grip with the hand material grasping can be agglomerating, the mixed material of loosing one's grip and can scatter;
The 5th step: carry out moldedly with mixed material, obtain molded blank;
The 6th step: the demoulding and processing, sintering and processing namely obtain finished product.
Embodiment 10:Be the further embodiment of ceramic rice-milling roller making method, as different from Example 9, the described the first step and the mixing time in second step were respectively 3～6 minutes, and the churning time in the 3rd step is 5～10 minutes.
Embodiment 11:Be the further embodiment of ceramic rice-milling roller making method, as different from Example 9, described sintering, its temperature is more than or equal to 1100 ℃, and smaller or equal to 1200 ℃, sintering time is 35～38 hours.
Embodiment 12:Be the further embodiment of ceramic rice-milling roller making method, as different from Example 9, described sintering, its temperature is 1180 ℃, sintering time is 37 hours.
Embodiment 13:It is preferred embodiment of the present invention's pottery rice-milling roller making method.Utensil is selected for use: 1 of 200 kilograms of mixer, and 1 of 150 kilograms of electronic platform scale, charge cask and material shovel are some; Step is:
The first step: the percentage that accounts for the wedding agent total amount by raw material is recently prepared wedding agent, and wherein feldspar in powder 40%, potter's clay powder 20%, and silica powder 25%, 25 kilograms of wedding agents of boron glass powder 15% preparation are standby; Second step: get 25 kilograms of wedding agents, 3.5 kilograms in yellow starch gum powder is poured mixer successively into, is just changeing 2 minutes, reverses and takes out after 1 minute, and the container of packing into is stand-by; The 3rd step: get 100 kilograms in silicon carbide, 4 kilograms of yellow starch gum liquid are poured mixer successively into, are just changeing counter-rotating in 2 minutes and are stopping after 1 minute stirring, and treat next step; The 4th goes on foot: the compound of the first step is poured in the mixer just changes 5 minutes with second the mixing of step, and the 1 minute material that reverses stirs, and obtaining holding with a firm grip with the hand material grasping can be agglomerating, the mixed material of loosing one's grip and can scatter; As because of the weather humidity effect, the material grasping feel is too wet or too dried, and the concentration of changeable yellow starch gum liquid is mixed again one pot and expects remix with it; The 5th step: carry out moldedly with mixed material, obtain molded blank; The 6th step: the demoulding and processing, sintering and processing namely obtain finished product; Wherein, sintering temperature is 1180 ℃, and sintering time is 37 hours.
Claim protection domain of the present invention is not limited to above-described embodiment.
Claims (12)
1. ceramic rice-milling roller is characterized in that material component is counted with weight part:
80～120 parts in silicon carbide, 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder, 3～5 parts of yellow starch gum liquid; Described wedding agent comprises feldspar in powder, potter's clay powder, silica powder and boron glass powder; Compact density is 2.1～3g/cm
3
Above-mentioned raw materials is through batch mixes, blank moulding, high-temperature firing and process.
2. ceramic rice-milling roller according to claim 1 is characterized in that, described yellow starch gum liquid, and its concentration is 30%～40%.
3. ceramic rice-milling roller according to claim 1 is characterized in that, wedding agent by weight, wherein each raw material accounts for the per-cent choosing value scope of wedding agent total amount and is: feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%.
4. according to claim 1 or 2 or 3 described ceramic rice-milling rollers, it is characterized in that material component is counted with weight part: 90～110 parts in silicon carbide, 22～28 parts of wedding agents, 3.0～4 parts in yellow starch gum powder, 3.2～4.2 parts of yellow starch gum liquid.
5. according to claim 1 or 2 or 3 described ceramic rice-milling rollers, it is characterized in that its material component is counted with weight part when preparation: 95～100 parts in silicon carbide, 24～26 parts of wedding agents, 3.2～4.2 parts in yellow starch gum powder, 3.5～4.5 parts of yellow starch gum liquid.
6. according to claim 1 or 2 or 3 described ceramic rice-milling rollers, it is characterized in that its material component is counted with weight part when preparation: 100 parts in silicon carbide, 25 parts of wedding agents, 3.5 parts in yellow starch gum powder, 4 parts of yellow starch gum liquid.
7. ceramic rice-milling roller according to claim 1 is characterized in that, carborundum granularity is F16～F60; Pottery rice-milling roller hardness is P; Compact density is 2.35g/cm
3
8. ceramic rice-milling roller according to claim 1 is characterized in that, sand roller (1) is shaped as round shape, cylindrical mill groove (3) and louvre (4) radially; Sand roller (1) center has the axis hole that can fixedly connected with sand roller metal-cored (2).
9. described ceramic rice-milling roller making method of claim 1 is characterized in that step comprises:
The first step: it is standby that the percentage that accounts for the wedding agent total amount by raw material is recently prepared wedding agent, and wherein feldspar in powder 30%～60%, potter's clay powder 15%～30%, silica powder 15%～40%, boron glass powder 5%～20%;
Second step: get 20～30 parts of wedding agents, 2.5～4.5 parts in yellow starch gum powder is poured mixer into, mixes the back and takes out, and the container of packing into is stand-by;
The 3rd step: get 80～120 parts in silicon carbide, 3～5 parts of yellow starch gum liquid are poured into and are stopped after mixer mixes stirring, and treat next step;
The 4th step: the compound that the compound of the first step was poured in the mixer with second step stirs, and obtaining holding with a firm grip with the hand material grasping can be agglomerating, the mixed material of loosing one's grip and can scatter;
The 5th step: carry out moldedly with mixed material, obtain molded blank;
The 6th step: the demoulding, sintering and processing namely obtain finished product.
10. ceramic rice-milling roller making method according to claim 9 is characterized in that, the first step and the mixing time in second step were respectively 3～6 minutes, and the churning time in the 3rd step is 5～10 minutes.
11. ceramic rice-milling roller making method according to claim 9 is characterized in that, described sintering, and its temperature is greater than 1100 ℃, and less than 1200 ℃, sintering time is 35～38 hours.
12. ceramic rice-milling roller making method according to claim 9 is characterized in that, described sintering, and its temperature is 1180 ℃, sintering time is 37 hours.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446492A (en) * | 2014-11-21 | 2015-03-25 | 柳州创宇科技有限公司 | Ceramic material for rice milling sand roller and preparation method thereof |
| CN107473747A (en) * | 2017-07-04 | 2017-12-15 | 扬中市远东轴承专用油石厂 | The preparation formula and technique of a kind of cubic silicon carbide oilstone |
| CN111423234A (en) * | 2020-04-29 | 2020-07-17 | 湖北省鄂州市天元砂辊有限责任公司 | Coarse cereal ceramic sand roller and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446492A (en) * | 2014-11-21 | 2015-03-25 | 柳州创宇科技有限公司 | Ceramic material for rice milling sand roller and preparation method thereof |
| CN107473747A (en) * | 2017-07-04 | 2017-12-15 | 扬中市远东轴承专用油石厂 | The preparation formula and technique of a kind of cubic silicon carbide oilstone |
| CN111423234A (en) * | 2020-04-29 | 2020-07-17 | 湖北省鄂州市天元砂辊有限责任公司 | Coarse cereal ceramic sand roller and manufacturing method thereof |
| CN111423234B (en) * | 2020-04-29 | 2023-11-24 | 湖北省鄂州市天元砂辊有限责任公司 | Coarse cereal ceramic sand roller and manufacturing method thereof |
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Application publication date: 20130904 |