CN105254835A - Baseball and softball core and production method thereof - Google Patents
Baseball and softball core and production method thereof Download PDFInfo
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- CN105254835A CN105254835A CN201410335531.6A CN201410335531A CN105254835A CN 105254835 A CN105254835 A CN 105254835A CN 201410335531 A CN201410335531 A CN 201410335531A CN 105254835 A CN105254835 A CN 105254835A
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Abstract
The present invention discloses a baseball and softball core and a production method thereof. According to the formula of the ball core, polyether polyol, diaminodiphenylmethane, triethylenediamine, dibutyltin dilaurate, modified organosiloxane and pentamethyldiethylenetriamine form a material A, polymerization MDI forms a material B, and the material A and the material B are matched to form the ball core, wherein a weight ratio of the material A to the material B is 100:45-50. The preparation method comprises: injecting the material A and the material B into a mold, and carrying out demolding molding after 5 min so as to obtain the ball core, wherein the total weight of the material A and the material B is 16 kg. According to the present invention, with the ball core filled and molded according to the formula, the stability of the ball core molding can be ensured, and the production process of the ball core is simple so as to reduce the baseball and softball core production cost; under the premise of the same volume of the existing ball core, the weight of the ball core can be effectively reduced, the reduced weight of the ball core can be distributed on the density and the thickness of the wool yarn wound outside the ball core, the reduction of the ball body deformation can be ensured, and the service life of the ball body can be ensured with the stability and the hardness of the ball core performance.
Description
Technical field
The invention relates to a kind of making method of ball core, refer to a kind of rod, softball ball core and preparation method thereof especially.
Background technology
Current ball core is many to be made by cork and secondary rubber, and cork is made up of natural materials, and quality is not easy unanimously, and pressure-bearing is limited, frangible; And secondary rubber deformation degree is large, high heat is yielding, finite stiffness, and therefore, current ball core exists shaping poor stability, the defect that cost of manufacture is high; In addition, rod, the place performance requriements of softball in use in response to different are different, such as medicine ball requires that its jumping degree regulation range is large, the variation range of ball core in weight and volume made according to current material is limited, and the density that the outer wool yarn of ball core is wound around and finite thickness directly determine the finiteness that spheroid jumping degree regulates.
Summary of the invention
The object of this invention is to provide and a kind ofly effectively can improve the shaping stability of Baseball and Softball, reduce the rod, softball ball core and preparation method thereof of Baseball and Softball cost of manufacture.
For achieving the above object, solution of the present invention is:
A kind of rod, softball ball core, its formula is formed A expected by polyether glycol, diaminodiphenylmethane, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, five methyl diethylentriamine, and is made up of B material assembly CrudeMDI and forms; With B, A material expects that weight ratio is 100:45-50; Wherein each several part the consisting of with weight ratio of A material:
Molecular weight be 5000 polyether glycol content account for 70%-80%;
Diaminodiphenylmethane content accounts for 20%-28%;
Triethylene diamine content accounts for 0.4%-0.5%;
Dibutyl tin laurate content accounts for 0.005%-0.015%;
Modified organic silicon oxygen alkane content accounts for 0.4%-0.6%;
Pentamethyl-diethylenediamine content accounts for 0.03%-0.05%;
A making method for rod, softball ball core, concrete steps are:
Step 1, heating 120 DEG C, dissolve diaminodiphenylmethane, diaminodiphenylmethane after dissolving and molecular weight are polyether glycol, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, the five methyl diethylentriamine of 5000, are mixed into A material by above-mentioned content;
Step 2, A is expected in suction PU bottler A groove, expect that gross weight adds the water of 0.4% by A, be uniformly mixed.
Step 3, B is expected in suction PU bottler B groove;
Step 4, the material temperature of A groove and B groove in PU bottler is set as 30 DEG C, mold temperature set is 45-50 DEG C;
In step 5, A groove, in raw material and B groove, raw material is by weight 100:50, and gross weight is 16 g and injects in moulds, 5 minutes can stripping forming ball core.
After adopting such scheme, the ball core that the present invention is made by this formula form mode, not only can ensure the stability that ball core is shaping, and make the production process of ball core more simple, and then reduce the cost of manufacture of rod, softball; In addition, the relatively existing ball core of ball core of the present invention effectively can reduce the weight of ball core under the prerequisite of same volume, the amount of the loss of weight of ball core can be allocated in density and thickness that outside ball core, wool yarn is wound around, the increase of density is wound around by wool yarn, ensure the minimizing of spheroid degree of deformation, and the stability of ball core performance and hardness also can ensure the work-ing life of spheroid.
Embodiment
Present invention is disclosed a kind of rod, softball ball core, its formula is formed A expected by polyether glycol, diaminodiphenylmethane, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, five methyl diethylentriamine, and by CrudeMDI(many phenylmethanes polyisocyanates) form B material assembly and form; A material expects weight ratio 100:45-50 with B; Wherein each several part the consisting of with weight ratio of A material:
Molecular weight be 5000 polyether glycol content account for 70%-80%;
Diaminodiphenylmethane content accounts for 20%-28%;
Triethylene diamine content accounts for 0.4%-0.5%;
Dibutyl tin laurate content accounts for 0.005%-0.015%;
Modified organic silicon oxygen alkane content accounts for 0.4%-0.6%;
Pentamethyl-diethylenediamine content accounts for 0.03%-0.05%;
The concrete making step of this rod, softball ball core is:
Step 1, heating 120 DEG C, dissolve diaminodiphenylmethane, diaminodiphenylmethane after dissolving and molecular weight are polyether glycol, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, the five methyl diethylentriamine of 5000, are mixed into A material by above-mentioned content;
Step 2, A is expected in suction PU bottler A groove, expect that gross weight adds the water of 0.4% by A, be uniformly mixed.
Step 3, B is expected in CrudeMDI suction PU bottler B groove;
Step 4, the material temperature of A groove and B groove in PU bottler is set as 30 DEG C, mold temperature set is 45-50 DEG C;
In step 5, A groove, in raw material and B groove, raw material is by weight 100:50, and gross weight is 16 g and injects in moulds, 5 minutes can stripping forming ball core.
Wherein: molecular weight is that the polyether glycol of 5000 is mainly when host uses and CrudeMDI reacts.Diaminodiphenylmethane mainly plays chain extending reaction, increases jumping degree and the hardness of ball core, Reaction time shorten.Triethylene diamine, dibutyl tin laurate and five methyl diethylentriamine mainly play catalyzed reaction effect.Modified organic silicon oxygen alkane mainly plays emulsifying effect with water.The effect of water mainly treats as whipping agent, weight reduction.
The ball core of formula form like this, not only can ensure the stability that ball core is shaping, and makes the production process of ball core more simple, and then reduces the cost of manufacture of rod, softball; And relatively existing ball core effectively can reduce the weight of ball core under the prerequisite of same volume, the amount of the loss of weight of ball core can be allocated in density and thickness that outside ball core, wool yarn is wound around, the increase of density is wound around by wool yarn, ensure the minimizing of spheroid degree of deformation, and the stability of ball core performance and hardness also can ensure the work-ing life of spheroid.Table specific as follows:
Table 1:
Table 2:
As can be seen here, ball core of the present invention is all better than traditional ball core on various Performance figure.
Claims (3)
1. a rod, softball ball core, it is characterized in that: its formula is formed A expected by polyether glycol, diaminodiphenylmethane, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, five methyl diethylentriamine, and be made up of B material assembly CrudeMDI and form; With B, A material expects that weight ratio is 100:45-50; Wherein each several part the consisting of with weight ratio of A material:
Molecular weight be 5000 polyether glycol content account for 70%-80%;
Diaminodiphenylmethane content accounts for 20%-28%;
Triethylene diamine content accounts for 0.4%-0.5%;
Dibutyl tin laurate content accounts for 0.005%-0.015%;
Modified organic silicon oxygen alkane content accounts for 0.4%-0.6%;
Pentamethyl-diethylenediamine content accounts for 0.03%-0.05%.
2. the making method of rod as claimed in claim 1, softball ball core, concrete steps are:
Step 1, heating 120 DEG C, dissolve diaminodiphenylmethane, diaminodiphenylmethane after dissolving and molecular weight are polyether glycol, triethylene diamine, dibutyl tin laurate, modified organic silicon oxygen alkane, the five methyl diethylentriamine of 5000, are mixed into A material by above-mentioned content;
Step 2, A is expected in suction PU bottler A groove, expect that gross weight adds the water of 0.4% by A, be uniformly mixed.
3. B expects in suction PU bottler B groove by step;
Step 4, the material temperature of A groove and B groove in PU bottler is set as 30 DEG C, mold temperature set is 45-50 DEG C;
In step 5, A groove, in raw material and B groove, raw material is by weight 100:50, and gross weight is 16 g and injects in moulds, 5 minutes can stripping forming ball core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335531.6A CN105254835A (en) | 2014-07-15 | 2014-07-15 | Baseball and softball core and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410335531.6A CN105254835A (en) | 2014-07-15 | 2014-07-15 | Baseball and softball core and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105254835A true CN105254835A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410335531.6A Pending CN105254835A (en) | 2014-07-15 | 2014-07-15 | Baseball and softball core and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144269A (en) * | 2018-01-31 | 2018-06-12 | 海宁市博展经编有限公司 | A kind of processing method of Baseball and Softball |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976295A (en) * | 1974-07-10 | 1976-08-24 | Lannom Manufacturing Company, Inc. | Game ball |
| US4364565A (en) * | 1981-05-22 | 1982-12-21 | Home Of Champions, S.A. | Game ball |
| JPS5920318A (en) * | 1982-07-27 | 1984-02-02 | Asahi Denka Kogyo Kk | Production of polyurethane foam ball |
| US4454253A (en) * | 1983-09-19 | 1984-06-12 | Atlantic Richfield Co. | Polyurethane foam game ball, composition and process |
| CN102977316A (en) * | 2012-12-03 | 2013-03-20 | 山东东大一诺威聚氨酯有限公司 | Slow gel flexible polyurethane foam composition |
-
2014
- 2014-07-15 CN CN201410335531.6A patent/CN105254835A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976295A (en) * | 1974-07-10 | 1976-08-24 | Lannom Manufacturing Company, Inc. | Game ball |
| US3976295B1 (en) * | 1974-07-10 | 1990-04-10 | Lannom Manufacturing Co Inc | |
| US4364565A (en) * | 1981-05-22 | 1982-12-21 | Home Of Champions, S.A. | Game ball |
| JPS5920318A (en) * | 1982-07-27 | 1984-02-02 | Asahi Denka Kogyo Kk | Production of polyurethane foam ball |
| US4454253A (en) * | 1983-09-19 | 1984-06-12 | Atlantic Richfield Co. | Polyurethane foam game ball, composition and process |
| CN102977316A (en) * | 2012-12-03 | 2013-03-20 | 山东东大一诺威聚氨酯有限公司 | Slow gel flexible polyurethane foam composition |
Non-Patent Citations (1)
| Title |
|---|
| 刘益军: "《聚氨酯原料及助剂手册》", 30 April 2005 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144269A (en) * | 2018-01-31 | 2018-06-12 | 海宁市博展经编有限公司 | A kind of processing method of Baseball and Softball |
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Application publication date: 20160120 |