SU668810A1 - Mould for making articles from flowing concrete mixes - Google Patents
Mould for making articles from flowing concrete mixesInfo
- Publication number
- SU668810A1 SU668810A1 SU782563788A SU2563788A SU668810A1 SU 668810 A1 SU668810 A1 SU 668810A1 SU 782563788 A SU782563788 A SU 782563788A SU 2563788 A SU2563788 A SU 2563788A SU 668810 A1 SU668810 A1 SU 668810A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mould
- pallet
- concrete mixes
- making articles
- flowing concrete
- Prior art date
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Description
мыкающий элемент 4 выполнен так, что он входит в форму с некоторым зазором и по мере извлечени из бетона воды он имеет возможность переместитьс вниз.The locking element 4 is designed so that it enters the mold with a certain gap and, as it is extracted from the concrete of water, it can move downwards.
Есаи необходимо изготавливать издели различных размеров, использование такого замыкающего элемента затруднено, потому предлагаетс бортовые элементы 2 формы выполн ть с возможностью изменени их высоты в процессе обработки изделий. В частности, бортовые элементы 3 могут быть вьпголнены с эластичными прокладками, или непосредственно сами выполнены эластичными, или бортовые элементы 2 выполнены со скосами и возможностью взаимного перемещени относительно друг друга.Esai needs to make products of various sizes, the use of such a closing element is difficult, therefore, it is proposed to carry out the side elements 2 of the form with the possibility of changing their height during the processing of products. In particular, the side elements 3 can be filled with elastic pads, or directly made elastic, or the side elements 2 are made with bevels and the possibility of mutual movement relative to each other.
Предлагаема форма работает следующим образом .The proposed form works as follows.
В форму подаетс строго дозированна подвижна бетонна смесь, затем форма закрываетс замыкающим элементом 4 и к электродам подаетс посто нный ток градиентом 1,7- 2 В на погонный см толщины и выдерживаетс в тече1те 20 мин; затем в течение 20 мин подаетс переменный ток напр жением 127 В И одновременно прикладываетс давление 0,20 ,4 кг/см или более.A strictly metered mobile concrete mixture is fed into the form, then the form is closed by the locking element 4 and a constant current of 1.7-2 V per linear cm of thickness is applied to the electrodes and kept for 20 minutes; an alternating current of 127 V is then applied for 20 minutes. At the same time, a pressure of 0.20,4 kg / cm or more is applied.
Предгшгаема форма позвол ет увеличить количество удал емой воды за счет того, что перфорируют сами электроды, а не борта формы , как в известных рещени х. Это св зано с тем, что температура разогрева из-за потерь тепла у поверхностей электродов ниже. Кроме того, на этих участках вследствие возникновени внутреннего давлени происходит скопление токогфовод щей фазы, из-за чего температура в центре издели растет быстрее, чем на периферии. Поэтому при изготовлении плоских или тонкостенных изделий из бетона необходима перфораци элементов, вл ющихс электродами (поддон, замыкающий элемент или их обоих).Predictable form allows an increase in the amount of water removed due to the fact that the electrodes themselves are perforated, and not the bead of the form, as in the known solutions. This is due to the fact that the heating temperature due to heat loss at the surfaces of the electrodes is lower. In addition, in these areas, due to the occurrence of internal pressure, an accumulation of the tocogrowing phase occurs, due to which the temperature in the center of the product grows faster than at the periphery. Therefore, in the manufacture of flat or thin-walled concrete products, it is necessary to perforate elements that are electrodes (pallet, end element, or both).
В этом случае движение извлекаемой воды противоположно направлению температурного градиента и совпадает с градиентом давлени , возникающего в бетоне за счет подъема температуры и количество ее существенно больше, чем при удалении через перфорацию элементов.In this case, the movement of the extracted water is opposite to the direction of the temperature gradient and coincides with the pressure gradient that occurs in the concrete due to the rise in temperature and the amount of it is significantly greater than when removed through the perforation of the elements.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782563788A SU668810A1 (en) | 1978-01-05 | 1978-01-05 | Mould for making articles from flowing concrete mixes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782563788A SU668810A1 (en) | 1978-01-05 | 1978-01-05 | Mould for making articles from flowing concrete mixes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU668810A1 true SU668810A1 (en) | 1979-06-25 |
Family
ID=20741905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782563788A SU668810A1 (en) | 1978-01-05 | 1978-01-05 | Mould for making articles from flowing concrete mixes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU668810A1 (en) |
-
1978
- 1978-01-05 SU SU782563788A patent/SU668810A1/en active
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