Manufacture method of drum paper of loudspeaker
A production method and speaker technology, applied in pulp beating method, paper, papermaking and other directions, can solve the problems of high air leakage rate, poor sounding effect of speakers, and high distortion rate, achieve good sealing, improve clarity and thickness , the effect of reducing the distortion rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0032] A method for making loudspeaker drum paper, comprising the following steps:
[0033] (1) Beating: Add water accounting for 65% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 15 minutes, place a light knife for 25 minutes and then a heavy knife for 2 hours ; After 2 hours of knocking, measure the degree of pulp knocking. After reaching the required degree of knocking, lift the knife. Kraft softwood pulp (UKP), sisal, cotton pulp, kapok, bullet-proof fiber, wool and glass fiber, wherein the knocking degree of natural kraft softwood pulp is 20 degrees, and the knocking degree of the sisal is 30 degrees, The degree of knocking of the cotton pulp is 25 degrees;
[0034] (2) Batching: mix different types of slurry according to a certain weight ratio to obtain a mixed slurry, add dyes, salt, acrylic latex (ODG) waterproofing agent and trimethyl phosphate ( P615) additives to harde...
Embodiment 2
[0047] A method for making loudspeaker drum paper, comprising the following steps:
[0048] (1) Beating: Add water accounting for 75% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 25 minutes, place a light knife for 35 minutes and then a heavy knife for 2.5 hours ;After 2.5 hours of knocking, measure the pulp knocking degree, and lift the knife after reaching the required knocking degree. If not, extend the time until the required knocking degree is reached, and finally obtain different types of pulp; the above raw materials include natural color kraft coniferous wood pulp (UKP), sisal, cotton pulp, kapok, bulletproof fiber, wool and glass fiber, wherein the beating degree of natural kraft softwood pulp is 20 degrees, the beating degree of the sisal is 30 degrees, and the beating degree of the cotton pulp is The percussion degree is 25 degrees;
[0049] (2) Batching: mix different...
Embodiment 3
[0062] A method for making loudspeaker drum paper, comprising the following steps:
[0063] (1) Beating: Add water accounting for 70% of the volume of the beater into the beater pool; put each raw material into the pulp pool of different beaters for freeing; after freeing for 20 minutes, place a light knife for 30 minutes and then a heavy knife for 2 hours ; After 2 hours of knocking, measure the pulp knocking degree, and lift the knife after reaching the required knocking degree. If it is not reached, extend the time until the required knocking degree is reached, and finally obtain different types of pulp; the above raw materials include uncolored kraft softwood pulp (UKP), sisal, cotton pulp, kapok, bulletproof fiber, wool and glass fiber, wherein the beating degree of natural kraft softwood pulp is 20 degrees, the beating degree of the sisal is 30 degrees, and the beating degree of the cotton pulp is The percussion degree is 25 degrees;
[0064] (2) Batching: mix different...
PUM
Property | Measurement | Unit |
---|---|---|
beating degree | aaaaa | aaaaa |
beating degree | aaaaa | aaaaa |
beating degree | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com