CN103212185A - Production process of dumbbell - Google Patents
Production process of dumbbell Download PDFInfo
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- CN103212185A CN103212185A CN 201310161539 CN201310161539A CN103212185A CN 103212185 A CN103212185 A CN 103212185A CN 201310161539 CN201310161539 CN 201310161539 CN 201310161539 A CN201310161539 A CN 201310161539A CN 103212185 A CN103212185 A CN 103212185A
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- Prior art keywords
- dumbbell
- shell
- production technology
- smooth
- pig iron
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses production process of a dumbbell. The production process of the dumbbell includes the following steps: 1, selecting raw materials which comprise pig iron and natural rubber; 2, manufacturing a model of the dumbbell; 3, melting the pig iron in a high temperature, and casting the melted pig iron on the model, wherein the temperature is 3000 DEG C-3400 DEG C; 4, cooling and obtaining a semi-finished product; 5, polishing the semi-finished product, and obtaining a smooth dumbbell; 6, manufacturing a die of an outer shell of the smooth dumbbell; 7, smashing, heating and melting the natural rubber, pouring the melted natural rubber into the die of the outer shell to conduct extrusion forming, and obtaining the outer shell of the dumbbell, wherein the pressure is 500MPa-550MPa; and 8, nesting the smooth dumbbell into the outer shell of the dumbbell, and obtaining a complete dumbbell. The production process of the dumbbell is simple in process, and the produced dumbbell is safe to use.
Description
Technical field
The present invention relates to a kind of production technology, relate in particular to a kind of production technology of dumbbell.
Background technology
At present, along with development of times, people's life is become better and better, and that eats also becomes better and better, can be along with improving of living, and obesity also can be followed, and therefore various fitness and weight losing equipment are also used and are given birth to.
Dumbbell nowadays neither the weightlifter proprietary article because that present dumbbell can design is small and exquisite, so dumbbell is also more and more universal in people's life, smoother in but general dumbbell is held in the hand, frictional force is less, can cause danger from landing on hand in the time of use.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of technology is simple, the production technology of easy-operating dumbbell.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of production technology of dumbbell, and this production technology comprises successively:
Step 1: choose raw material, described raw material comprises the pig iron and natural rubber;
Step 2: the model of making dumbbell;
Step 3: with pig iron high temperature melt, the pig iron after melting is cast on the model, described temperature is 3000 ℃-3400 ℃;
Step 4: cooling obtains blank;
Step 5: the described blank of polishing obtains smooth dumbbell;
Step 6: the mould of making described smooth dumbbell shell;
Step 7: with described natural rubber pulverize, heating and melting, the rubber after melting is poured into extrusion modling in the mould of described shell, obtain the shell of dumbbell, described pressure is 500MPa-550MPa;
Step 8: described smooth dumbbell is inserted in the dumbbell shell, obtains complete dumbbell.
Described temperature is 3200 ℃.
Described pressure is 525MPa.
Uniform projection is arranged above the shell of described dumbbell, and the length of described projection is 0.3 millimeter-0.5 millimeter.
The length of described projection is 0.4 millimeter.
Compared with prior art, beneficial effect of the present invention is:
Because the production technology of dumbbell of the present invention has adopted the processing step and the condition of reasonable raw material and science, contain the step of dumbbell gram surface being made projection in the operation, so the dumbbell frictional force that the present invention produces is bigger, comparatively reliable in hand held, safe in utilization, and production process is few, easy to operate, so technology of the present invention dumbbell simple, that produce is safe in utilization.
The specific embodiment
Describe the present invention in detail below in conjunction with the specific embodiment
A kind of production technology of dumbbell, this production technology comprises successively:
Step 1: choose raw material, described raw material comprises the pig iron and natural rubber;
Step 2: the model of making dumbbell;
Step 3: with pig iron high temperature melt, the pig iron after melting is cast on the model, described temperature is 3000 ℃-3400 ℃;
Step 4: cooling obtains blank;
Step 5: the described blank of polishing obtains smooth dumbbell;
Step 6: the mould of making described smooth dumbbell shell;
Step 7: with described natural rubber pulverize, heating and melting, the rubber after melting is poured into extrusion modling in the mould of described shell, obtain the shell of dumbbell, described pressure is 500MPa-550MPa;
Step 8: described smooth dumbbell is inserted in the dumbbell shell, obtains complete dumbbell.
Uniform projection is arranged above the shell of described dumbbell, and the length of described projection is 0.3 millimeter-0.5 millimeter.
Above-mentioned production technology has adopted the processing step and the condition of reasonable raw material and science, thus can produce safe and reliable dumbbell, and production process is few, easy to operate.
Embodiment 1:
A kind of production technology of dumbbell, this production technology comprises successively:
Step 1: choose raw material, described raw material comprises the pig iron and natural rubber;
Step 2: the model of making dumbbell;
Step 3: with pig iron high temperature melt, the pig iron after melting is cast on the model, described temperature is 3200 ℃;
Step 4: cooling obtains blank;
Step 5: the described blank of polishing obtains smooth dumbbell;
Step 6: the mould of making described smooth dumbbell shell;
Step 7: with described natural rubber pulverize, heating and melting, the rubber after melting is poured into extrusion modling in the mould of described shell, obtain the shell of dumbbell, described pressure is 525MPa;
Step 8: described smooth dumbbell is inserted in the dumbbell shell, obtains complete dumbbell.
Uniform projection is arranged above the shell of described dumbbell, and the length of described projection is 0.4 millimeter.
In sum, technology of the present invention is simple, easy to operate.
The above only is a better embodiment of the present invention; protection scope of the present invention is not exceeded with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (5)
1. the production technology of a dumbbell, it is characterized in that: this production technology comprises successively:
Step 1: choose raw material, described raw material comprises the pig iron and natural rubber;
Step 2: the model of making dumbbell;
Step 3: with pig iron high temperature melt, the pig iron after melting is cast on the model, described temperature is 3000 ℃-3400 ℃;
Step 4: cooling obtains blank;
Step 5: the described blank of polishing obtains smooth dumbbell;
Step 6: the mould of making described smooth dumbbell shell;
Step 7: with described natural rubber pulverize, heating and melting, the rubber after melting is poured into extrusion modling in the mould of described shell, obtain the shell of dumbbell, described pressure is 500MPa-550MPa;
Step 8: described smooth dumbbell is inserted in the dumbbell shell, obtains complete dumbbell.
2. the production technology of a kind of dumbbell according to claim 1, it is characterized in that: described temperature is 3200 ℃.
3. the production technology of a kind of dumbbell according to claim 1, it is characterized in that: described pressure is 525MPa.
4. the production technology of a kind of dumbbell according to claim 1, it is characterized in that: it is 0.3 millimeter-0.5 millimeter that uniform projection, the length of described projection are arranged above the shell of described dumbbell.
5. the production technology of a kind of dumbbell according to claim 4, it is characterized in that: the length of described projection is 0.4 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310161539 CN103212185A (en) | 2013-05-06 | 2013-05-06 | Production process of dumbbell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310161539 CN103212185A (en) | 2013-05-06 | 2013-05-06 | Production process of dumbbell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103212185A true CN103212185A (en) | 2013-07-24 |
Family
ID=48810549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310161539 Pending CN103212185A (en) | 2013-05-06 | 2013-05-06 | Production process of dumbbell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103212185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826273A (en) * | 2015-05-22 | 2015-08-12 | 南通加隆塑胶有限公司 | Production technology for dumbbell |
| CN104860065A (en) * | 2015-05-08 | 2015-08-26 | 山东中大体育产业集团有限公司 | Production process for rubber-covered dumbbell |
| CN107413997A (en) * | 2017-09-30 | 2017-12-01 | 徐州九鼎机电总厂 | A kind of forging method of dumbbell |
| CN110757093A (en) * | 2019-12-24 | 2020-02-07 | 烟台大学 | Sports equipment processingequipment |
-
2013
- 2013-05-06 CN CN 201310161539 patent/CN103212185A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860065A (en) * | 2015-05-08 | 2015-08-26 | 山东中大体育产业集团有限公司 | Production process for rubber-covered dumbbell |
| CN104826273A (en) * | 2015-05-22 | 2015-08-12 | 南通加隆塑胶有限公司 | Production technology for dumbbell |
| CN107413997A (en) * | 2017-09-30 | 2017-12-01 | 徐州九鼎机电总厂 | A kind of forging method of dumbbell |
| CN110757093A (en) * | 2019-12-24 | 2020-02-07 | 烟台大学 | Sports equipment processingequipment |
| CN110757093B (en) * | 2019-12-24 | 2020-03-31 | 烟台大学 | Sports equipment processingequipment |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |