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In recent years, the noise problem of home appliances has gradually been paid attention to by consumers, and noise reduction has become an indispensable part of product desi.
The noise hazard of household appliances should not be underestimated
The noise hazard of household appliances should not be underestimatedThe danger of noise is obvio.
The educational background of factory employees ranges from masters to elementary school diplom.
When the final statistics came out, I thought it was incredib.
In the 10 options of air conditioner, washing machine, air conditioner fan, hair dryer, shaver, refrigerator, e.
This actually reflects a problem on the si.
However, according to the actual test data, the noise ranked first is the washing machine in working state, followed by the air conditioner outdoor unit, hair dryer, air conditioner fan, and shav.
Of course, this is only a small survey limited to a specific group, so what aspects will cause household appliance noise? The author believes that it mainly comes from the following aspects: current, wind noise, installation, shock, vibration and fricti.
Elastomer has obvious effect on weak stress absorption
Elastomer has obvious effect on weak stress absorptionSo how to reduce this noise? At present, the commonly used method in the home appliance industry is to use elastomer materials, which can deform significantly under weak stress, and can quickly recover to close to the original state and size after stress relaxati.
The company where the author works last year carried out noise reduction improvement for an air-conditioning fan of a famous domestic power pla.
The second is to change the caster from the original PP material to TPE material, and the noise reduction is also more obvio.
Third, noise reduction treatment has also been done on the turbo f.
These three applications are all simple one-shot injection molding, and the mold structure has not been adjusted, but the energy-absorbing effect of the special elastomer is used to achieve the purpose of noise reducti.
Air conditioner brands can also use TPV materials to replace rubber to make shock pa.
Overmolding also reduces noise
Overmolding also reduces noiseThe elastomer material has a shock-absorbing function, and by means of secondary molding, the noise caused by the motor vibration of products such as hair dryers can be reduc.
Different formulations of TPE materials can also be used for secondary overmolding with many general-purpose materia.
The specially formulated elastomer has good performance in weather resistance, high and low temperature resistance, and provides the possibility for the realization of some products with special requiremen.
Since the elastomer itself is a kind of flexible material, it has inherent advantages in shock absorption and energy absorption compared with ordinary hard materials without adding damping formu.
If the damping formula is further made, the effect will be multipli.
Domestic TPE has a cost advantage
Domestic TPE has a cost advantage Of course, in terms of cost, elastomer materials have gradually become more advantageo.
With the breaking of technical barriers, the rise of domestic material manufacture.
The price of elastomer materials has become very affordable, and products that could not be mass-produced due to cost issues can also be reconsider.
Compared with materials such as silicon and rubber, thermoplastic elastomer materials have better processing properties, and traditional injection molding, extrusion and other processes can achieve plasticizati.
In terms of processing cost, thermoplastic TPE materials are more advantageo.
On the whole, with the continuous efforts of domestic modification plants, the overall formulation design, production capacity and price of thermoplastic elastomers have made particularly significant progre.