CN112404430A - Production process of sports fitness equipment counter weight - Google Patents

Production process of sports fitness equipment counter weight Download PDF

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Publication number
CN112404430A
CN112404430A CN202011286432.5A CN202011286432A CN112404430A CN 112404430 A CN112404430 A CN 112404430A CN 202011286432 A CN202011286432 A CN 202011286432A CN 112404430 A CN112404430 A CN 112404430A
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China
Prior art keywords
iron powder
powder
reduced iron
blank
sintering
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011286432.5A
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Chinese (zh)
Inventor
肖拥军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Innoway Sporting Goods Technology Co ltd
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Nantong Innoway Sporting Goods Technology Co ltd
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Application filed by Nantong Innoway Sporting Goods Technology Co ltd filed Critical Nantong Innoway Sporting Goods Technology Co ltd
Priority to CN202011286432.5A priority Critical patent/CN112404430A/en
Publication of CN112404430A publication Critical patent/CN112404430A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/16Both compacting and sintering in successive or repeated steps
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/006Making ferrous alloys compositions used for making ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C33/00Making ferrous alloys
    • C22C33/02Making ferrous alloys by powder metallurgy
    • C22C33/0207Using a mixture of prealloyed powders or a master alloy

Abstract

The invention relates to a production process of a sports fitness equipment counterweight, which comprises the following steps of 1) preparing raw materials: the iron powder is 95-97% of the total weight, and the binder is 3-5% of the total weight; 2) mixing materials: stirring the proportioned iron powder and the binder by a stirrer for 30-45 minutes at 80 ℃; 3) pressing: the mixed raw materials are conveyed into a powder press, and a product blank of the sports fitness equipment counterweight is formed by one-time extrusion; 4) sintering and cooling: conveying the blank into a sintering furnace through a conveyor belt for sintering, and cooling after sintering and forming; 5) and (3) post-treatment: and (3) carrying out one or a combination of subsequent electroplating, paint spraying, encapsulation, plastic dipping and TPU or CPU surface post-treatment processing on the sintered blank to obtain a finished product. The design is ingenious, the process is complete, and the product quality meets the market demand.

Description

Production process of sports fitness equipment counter weight
Technical Field
The invention relates to the field of processing of sports fitness equipment, in particular to a production process of a counterweight of the sports fitness equipment.
Background
In the prior art, the balance weights (barbells, common dumbbells, flat-head hexagonal dumbbells, dumbbell pieces and the like) of the physical fitness equipment are spherical, columnar, flaky and other physical fitness equipment, and during production and manufacture, iron is adopted for casting molding, and then post-treatment processing and other operations are carried out, so that the mode has the advantages of multiple production procedures, complexity and high cost; at present, iron powder is also formed by processing through a powder metallurgy technology, but the process is not complete enough, the quality of the produced product cannot meet the market demand, and the product quality is not firm.
Disclosure of Invention
In order to solve the technical problems, the invention provides a production process of a sports fitness equipment counterweight, which has the advantages of ingenious design and perfect process, and the product quality meets the market demand.
The technical scheme of the invention is as follows:
a production process of a sports fitness equipment counterweight comprises the following steps:
1) preparing raw materials: the iron powder comprises 95-97% of the total weight of the iron powder and 3-5% of the binder.
2) Mixing materials: and stirring the proportioned iron powder and the binder by a stirrer for 30-45 minutes at 80 ℃.
3) Pressing: the mixed raw materials are conveyed into a powder press, and a product blank of the sports fitness equipment counterweight is formed by one-time extrusion.
4) Sintering and cooling: and (3) conveying the blank into a sintering furnace through a conveyor belt for sintering, and cooling after sintering and forming.
5) And (3) post-treatment: and (3) carrying out one or a combination of subsequent electroplating, paint spraying, encapsulation, plastic dipping and TPU or CPU surface post-treatment processing on the sintered blank to obtain a finished product.
The reduced iron powder is primary reduced iron powder or secondary reduced iron powder; when the primary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 95 percent, and the weight ratio of the binder to the total weight is 5 percent; when the secondary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 97 percent, and the weight ratio of the binder to the total weight is 3 percent.
The content of pure iron powder in the primary reduced iron powder is 95 percent, and the content of non-metal powder in the primary reduced iron powder is 5 percent; the content of pure iron powder in the secondary reduced iron powder is 97%, and the content of non-metal powder in the secondary reduced iron powder is 3%.
The sintering and cooling are carried out by a chain conveyor belt passing through a sintering furnace and then cooling, the sintering furnace is divided into five heating stages, the first stage is for heating 300 ℃, the second stage is for heating 800 ℃, the third stage is for heating 1050 ℃, the fourth stage is for heating 800 ℃, the fifth stage is for heating 300 ℃, and finally the sintering furnace enters a cooling tower designed at the outlet of the sintering furnace, and the cooling temperature in the cooling tower is 30-50 ℃.
The time distribution of the five heating stages in the sintering furnace is the average distribution; time of blank: 1-10kg of blank, and the heating time is 1.5 hours; 10-50kg of blank, and the heating time is 2 hours; 50-100kg of blank, and the heating time is 2.5 hours.
The binder is a nano binder.
The iron powder processing technology comprises the following steps:
1) selecting materials, namely the waste slag of the bread iron, the solid carbon and the limestone.
2) Pre-treating, namely sequentially carrying out primary screening, cleaning, drying, crushing and magnetic separation processing on fine iron powder; sequentially crushing, sieving and drying the solid carbon, wherein the size of a sieve pore is 4-8 m; limestone is processed by crushing, sieving and drying in sequence, and the size of a sieve pore is 2 m.
3) After mixing, the materials are sent into a reduction furnace for reduction reaction, and primary reduced iron powder with the particle size of 80-100 meshes is obtained after reduction is finished.
4) Cleaning, coarse crushing, fine crushing and magnetic separation are carried out on the primary reduced iron powder, and then secondary reduction is carried out through a reduction furnace.
5) And (4) performing fine crushing, magnetic separation and self-mixing on the product after the secondary reduction to obtain secondary reduced iron powder with the particle size of 120 meshes.
The electroplating process in the post-treatment aims at the products formed by processing the secondary reduced iron powder.
The powder press is a 1500-2000 ton powder press. Whether the pressing die structure has the data supplement description or not;
the non-metal powder is silicon dioxide powder.
The invention has the advantages of ingenious design, perfect process, high product quality meeting the market demand, high product hardness and impact resistance by adopting the secondary reduced iron powder in the electroplating process.
Detailed Description
Example 1
A production process of a sports fitness equipment counterweight comprises the following steps:
1) preparing raw materials: when the primary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 95 percent, and the weight ratio of the binder to the total weight is 5 percent; the content of pure iron powder in the primary reduced iron powder is 95 percent, and the content of non-metal powder in the primary reduced iron powder is 5 percent; the binder is a nano binder; the non-metal powder is silicon dioxide powder; the iron powder processing technology comprises the steps of selecting materials, bread iron waste residues, solid carbon and limestone, pretreating, and sequentially carrying out primary screening, cleaning, drying, crushing and magnetic separation processing on fine iron powder; sequentially crushing, sieving and drying the solid carbon, wherein the size of a sieve pore is 4-8 m; sequentially crushing, sieving and drying limestone, wherein the size of a sieve pore is 2 m; after mixing, the materials are sent into a reduction furnace for reduction reaction, and primary reduced iron powder with the particle size of 80-100 meshes is obtained after reduction is finished.
2) Mixing materials: and stirring the proportioned iron powder and the binder by a stirrer for 30-45 minutes at 80 ℃.
3) Pressing: the mixed raw materials are conveyed into a powder press, and a product blank of the sports fitness equipment counterweight is formed by one-time extrusion; the powder press is a 1500-2000 ton powder press.
4) Sintering and cooling: conveying the blank into a sintering furnace through a conveyor belt for sintering, and cooling after sintering and forming; the sintering and cooling are carried out by a chain conveyor belt passing through a sintering furnace and then cooling, the sintering furnace is divided into five heating stages, the first stage is for heating 300 ℃, the second stage is for heating 800 ℃, the third stage is for heating 1050 ℃, the fourth stage is for heating 800 ℃, the fifth stage is for heating 300 ℃, and finally the sintering furnace enters a cooling tower designed at the outlet of the sintering furnace, and the cooling temperature in the cooling tower is 30-50 ℃.
The time distribution of the five heating stages in the sintering furnace is the average distribution; time of blank: 1-10kg of blank, and the heating time is 1.5 hours; 10-50kg of blank, and the heating time is 2 hours; 50-100kg of blank, and the heating time is 2.5 hours.
5) And (3) post-treatment: and (3) performing one or more combination of subsequent paint spraying, encapsulation, plastic dipping and TPU or CPU surface post-treatment processing on the sintered blank to obtain a finished product.
After the product of the primary reduced iron powder is subjected to the subsequent processing treatment, the market demand is met, the processes are few, the cost is low, the product is resistant to falling, and the hardness is high.
Example 2
A production process of a sports fitness equipment counterweight comprises the following steps:
1) preparing raw materials: when the secondary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 97 percent, and the weight ratio of the binder to the total weight is 3 percent. The content of pure iron powder in the secondary reduced iron powder is 97%, and the content of non-metal powder in the secondary reduced iron powder is 3%. The binder is a nano binder; the non-metal powder is silicon dioxide powder; the iron powder processing technology comprises the steps of selecting materials, namely, the waste ferric bread slag, solid carbon and limestone; pre-treating, namely sequentially carrying out primary screening, cleaning, drying, crushing and magnetic separation processing on fine iron powder; sequentially crushing, sieving and drying the solid carbon, wherein the size of a sieve pore is 4-8 m; sequentially crushing, sieving and drying limestone, wherein the size of a sieve pore is 2 m; after mixing, feeding the materials into a reduction furnace for reduction reaction to obtain primary reduced iron powder with the particle size of 80-100 meshes after reduction; cleaning, coarse crushing, fine crushing and magnetic separation are carried out on the primary reduced iron powder, then secondary reduction is carried out on the primary reduced iron powder through a reduction furnace, and fine crushing, magnetic separation and self-mixing are carried out on the secondary reduced iron powder to obtain secondary reduced iron powder with the particle size of 120 meshes.
2) Mixing materials: and stirring the proportioned iron powder and the binder by a stirrer for 30-45 minutes at 80 ℃.
3) Pressing: the mixed raw materials are conveyed into a powder press, and a product blank of the sports fitness equipment counterweight is formed by one-time extrusion; the powder press is a 1500-2000 ton powder press.
4) Sintering and cooling: conveying the blank into a sintering furnace through a conveyor belt for sintering, and cooling after sintering and forming; the sintering and cooling are carried out by a chain conveyor belt passing through a sintering furnace and then cooling, the sintering furnace is divided into five heating stages, the first stage is for heating 300 ℃, the second stage is for heating 800 ℃, the third stage is for heating 1050 ℃, the fourth stage is for heating 800 ℃, the fifth stage is for heating 300 ℃, and finally the sintering furnace enters a cooling tower designed at the outlet of the sintering furnace, and the cooling temperature in the cooling tower is 30-50 ℃.
The time distribution of the five heating stages in the sintering furnace is the average distribution; time of blank: 1-10kg of blank, and the heating time is 1.5 hours; 10-50kg of blank, and the heating time is 2 hours; 50-100kg of blank, and the heating time is 2.5 hours.
5) And (3) post-treatment: and (3) performing one or more combination of subsequent paint spraying, encapsulation, plastic dipping and TPU or CPU surface post-treatment processing on the sintered blank to obtain a finished product.
The electroplating process in the post-treatment aims at the products formed by processing the secondary reduced iron powder. The sintered product prepared by rough preparation of the primary reduced iron powder particles is easy to have air holes, so that the primary reduced iron powder is not enough in hardness and not resistant to falling when used for electroplating the product, but the secondary reduced iron powder particles are fine and smooth, so that the product is not suitable for generating air holes, and the product prepared by the electroplating process is high in hardness, impact-resistant and not easy to break.
The product performance index is tested for 5 ten thousand times by adopting a 3-meter free falling body, and the product has no crack; the product has the surface hardness of 6H, is nontoxic, and has the density of 6.8-7.1kg/cm3And the market demand is met.
The product is non-toxic, and the specific chemical components are as follows:
Figure DEST_PATH_IMAGE001

Claims (10)

1. a production process of a sports fitness equipment counter weight, which is characterized in that,
1) preparing raw materials: the iron powder is 95-97% of the total weight, and the binder is 3-5% of the total weight;
2) mixing materials: stirring the proportioned iron powder and the binder by a stirrer for 30-45 minutes at 80 ℃;
3) pressing: the mixed raw materials are conveyed into a powder press, and a product blank of the sports fitness equipment counterweight is formed by one-time extrusion;
4) sintering and cooling: conveying the blank into a sintering furnace through a conveyor belt for sintering, and cooling after sintering and forming;
5) and (3) post-treatment: and (3) carrying out one or a combination of subsequent electroplating, paint spraying, encapsulation, plastic dipping and TPU or CPU surface post-treatment processing on the sintered blank to obtain a finished product.
2. A process for manufacturing a sports fitness apparatus weight according to claim 1, wherein the fine reduced iron is a primary fine reduced iron or a secondary fine reduced iron; when the primary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 95 percent, and the weight ratio of the binder to the total weight is 5 percent; when the secondary reduced iron powder is adopted, the weight ratio of the iron powder to the total weight is 97 percent, and the weight ratio of the binder to the total weight is 3 percent.
3. A process for manufacturing a sports fitness equipment weight according to claim 2, wherein the primary reduced iron powder contains 95% pure iron powder and 5% non-metal powder; the content of pure iron powder in the secondary reduced iron powder is 97%, and the content of non-metal powder in the secondary reduced iron powder is 3%.
4. A process for manufacturing a counterweight for sports fitness equipment according to claim 1, wherein the sintering and cooling are performed by passing a chain conveyor through a sintering furnace and cooling, the sintering furnace is divided into five heating stages, wherein the first stage is heating to 300 ℃, the second stage is heating to 800 ℃, the third stage is heating to 1050 ℃, the fourth stage is heating to 800 ℃, the fifth stage is heating to 300 ℃, and finally the sintering furnace is cooled to a cooling tower at an outlet of the sintering furnace, and the cooling temperature in the cooling tower is 30-50 ℃.
5. A process for manufacturing a sports fitness device weight according to claim 4, wherein the distribution of the time of the five heating stages in the sintering furnace is an average distribution; time of blank: 1-10kg of blank, and the heating time is 1.5 hours; 10-50kg of blank, and the heating time is 2 hours; 50-100kg of blank, and the heating time is 2.5 hours.
6. A process for manufacturing a sports fitness device weight according to claim 1, wherein the binder is a nano binder.
7. A process for manufacturing a sports fitness equipment weight according to claim 1, wherein the iron powder processing is,
1) selecting materials, namely, the waste slag of the bread iron, the solid carbon and the limestone;
2) pre-treating, namely sequentially carrying out primary screening, cleaning, drying, crushing and magnetic separation processing on fine iron powder; sequentially crushing, sieving and drying the solid carbon, wherein the size of a sieve pore is 4-8 m; sequentially crushing, sieving and drying limestone, wherein the size of a sieve pore is 2 m;
3) after mixing, feeding the materials into a reduction furnace for reduction reaction to obtain primary reduced iron powder with the particle size of 80-100 meshes after reduction;
4) cleaning, coarse crushing, fine crushing and magnetic separation are carried out on the primary reduced iron powder, then secondary reduction is carried out through a reduction furnace,
5) and (4) performing fine crushing, magnetic separation and self-mixing on the product after the secondary reduction to obtain secondary reduced iron powder with the particle size of 120 meshes.
8. A process for manufacturing a sports fitness equipment weight according to claim 2, wherein the post-treatment electroplating process is applied to a product formed by processing secondary reduced iron powder.
9. A process for the production of a sports fitness machine weight according to claim 1, wherein the powder press is a 1500 ton to 2000 ton powder press.
10. A process for manufacturing a sports fitness machine weight according to claim 3, wherein the non-metallic powder is silica powder.
CN202011286432.5A 2020-11-17 2020-11-17 Production process of sports fitness equipment counter weight Withdrawn CN112404430A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117505859A (en) * 2024-01-05 2024-02-06 南通英诺威体育用品科技有限公司 Production process for preparing body-building equipment iron block by using waste metal materials

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1157081A (en) * 1997-08-28 1999-03-02 Maruman Golf Corp Golf club head and its manufacture
CN2458014Y (en) * 2000-12-28 2001-11-07 王来全 Ring dumb-bell
US20020144571A1 (en) * 2000-07-19 2002-10-10 Ra Brands, L.L.C. Preparation of articles using metal injection molding
CN101176917A (en) * 2007-11-30 2008-05-14 华南理工大学 Method for shaping low temperature fluxion temperature pressure
CN102189256A (en) * 2011-04-11 2011-09-21 恒润国际贸易(天津)有限公司 Process for manufacturing dumbbell and barbell products
CN102397667A (en) * 2010-09-13 2012-04-04 南通铁人运动用品有限公司 Hand-held type weight plate
CN103042223A (en) * 2012-12-21 2013-04-17 宁夏众磊鑫科技实业有限公司 Reduced iron powder production process
CN107008914A (en) * 2017-04-06 2017-08-04 安徽工业大学 It is a kind of to improve the reduced iron powder production technology of reduced iron powder performance
CN107151757A (en) * 2017-03-27 2017-09-12 刘金财 A kind of preparation method of high-performance Fe-based powder metallurgy agglomerated material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1157081A (en) * 1997-08-28 1999-03-02 Maruman Golf Corp Golf club head and its manufacture
US20020144571A1 (en) * 2000-07-19 2002-10-10 Ra Brands, L.L.C. Preparation of articles using metal injection molding
CN2458014Y (en) * 2000-12-28 2001-11-07 王来全 Ring dumb-bell
CN101176917A (en) * 2007-11-30 2008-05-14 华南理工大学 Method for shaping low temperature fluxion temperature pressure
CN102397667A (en) * 2010-09-13 2012-04-04 南通铁人运动用品有限公司 Hand-held type weight plate
CN102189256A (en) * 2011-04-11 2011-09-21 恒润国际贸易(天津)有限公司 Process for manufacturing dumbbell and barbell products
CN103042223A (en) * 2012-12-21 2013-04-17 宁夏众磊鑫科技实业有限公司 Reduced iron powder production process
CN107151757A (en) * 2017-03-27 2017-09-12 刘金财 A kind of preparation method of high-performance Fe-based powder metallurgy agglomerated material
CN107008914A (en) * 2017-04-06 2017-08-04 安徽工业大学 It is a kind of to improve the reduced iron powder production technology of reduced iron powder performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117505859A (en) * 2024-01-05 2024-02-06 南通英诺威体育用品科技有限公司 Production process for preparing body-building equipment iron block by using waste metal materials
CN117505859B (en) * 2024-01-05 2024-03-08 南通英诺威体育用品科技有限公司 Production process for preparing body-building equipment iron block by using waste metal materials

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Application publication date: 20210226