CN1908055A

CN1908055A - Plastic sand

Info

Publication number: CN1908055A
Application number: CN 200610041253
Authority: CN
Inventors: 许其昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-28
Filing date: 2006-07-28
Publication date: 2007-02-07
Anticipated expiration: 2026-07-28
Also published as: CN100443538C

Abstract

the invention discloses a plastic sand for large-size water experiment model in the plastic matter technological domain, which is characterized by the following: adjusting plastic sand weight through adding fitful calcium compound; satisfying different density need; making plastic sand lubricate; displaying multiple colors and different regulars of plastic sand within 1-300 order.

Description

Mould sand

Technical field

The present invention relates to a kind of sand of moulding, be used for large-scale regimen experimental model, belong to the plastic products technology field.

Background technology

In relevant institution of higher learning and scientific research institutions, often need science data such as flow, drop, sand washing by large-scale experiment model measurement water of river, lake and sea, in these large-scale experiment models, the bed material that needs the simulation underwater structure, at present extensively the bed material that adopts has wood powder sand, coal dust sand and yellow ground, and these bed material common deficiencies are because its fixed proportion and can't regulate its density, easily caking and modeling type difficulty; The proportion of wood powder sand is less, and new wood powder sand will steep the preceding paragraph time before using, owing to rot easily, the usage period only has 7-8 month; The easy contaminate environment of coal dust sand; The relative requirement of experiment of the proportion of yellow ground is too big again.

Summary of the invention:

The purpose of this invention is to provide a kind of have different specific weight, free from environmental pollution, do model easily, do not lump in using and easily founding mould sand, overcome above-mentioned all deficiencies that existing wood powder sand, coal dust sand and yellow ground exist.

The objective of the invention is to be achieved through the following technical solutions, a kind of sand of moulding is characterized in that the described sand of moulding is major ingredient with the PS polystyrene, adds the calcium cpd of adjusting proportion and an amount of auxiliary material and is processed into; Its proportioning is the PS polystyrene of 84-88%, the calcium cpd of 11-15%, the auxiliary material of 0.04-0.07%; Its technology is followed successively by batch mixing, extrudes under extruding machine is heated condition and moulds bar, and bar is moulded in fragmentation in pulverizer, under the cold condition at the pulverizing mill abrasive dust, after vibratory screening apparatus screening or selection by winnowing under the wind condition is arranged.

The present invention utilizes the stable performance of PS polystyrene, without putrefaction, recyclable, pollution-free, the characteristics that do not harden, be used as the major ingredient manufacturing and mould sand, regulate the proportion of moulding sand by adding an amount of calcium cpd, make and mould sand and have different specific weight in the scope of 1.05-2, satisfy the different density needs of model, make and mould the sand surface lubrication by adding an amount of auxiliary material, and can provide multicolour, the present invention is abrasive dust under cold condition, can grind the sand of moulding of the interior different size of 1-300 order scope, the present invention has overcome existing wood powder sand, the relevant deficiency of coal dust sand and yellow ground, and can substitute wood powder sand fully, coal dust sand and yellow ground are applicable to the large-scale regimen experimental model of institution of higher learning and scientific research institutions.

Embodiment:

Further specify the present invention in conjunction with the embodiments, the present invention is a major ingredient with the PS polystyrene, adds the calcium cpd of adjusting proportion and an amount of auxiliary material and is processed into; Its proportioning is the PS polystyrene of 84-88%, the calcium cpd of 11-15%, the auxiliary material of 0.04-0.07%; Described calcium cpd can be a lime carbonate, can also be calcium stearate; Described auxiliary material comprises the blue or green dyestuff of benzene dioxalic acid fat, hexanodioic acid fat, phosphoric acid fat and titanium, benzene dioxalic acid fat, hexanodioic acid fat, phosphoric acid fat proportioning equalization; The blue or green dyestuff of described titanium can be that blue or green blue or titanium bluish yellow of titanium or titanium green grass or young crops are red, and the proportioning of the blue or green dyestuff of titanium is 0.001%; It is blue or green blue to add titanium, and moulding sand is pale blue, adds the titanium bluish yellow, and it is faint yellow moulding sand, and interpolation titanium green grass or young crops is red, and moulding sand is incarnadine;

Its manufacture craft is followed successively by batch mixing, extrudes under extruding machine is heated condition and moulds bar, and bar is moulded in fragmentation in pulverizer, under the cold condition at the pulverizing mill abrasive dust, after vibratory screening apparatus screening or selection by winnowing under the wind condition is arranged; In the described mixing procedure, earlier the PS polystyrene of proportioning and lime carbonate or calcium stearate were stirred 2-4 minute at normal temperatures, the auxiliary material that adds proportioning again stirred 55-65 minute; Described extruding machine is heated and is controlled at 200-250 ℃; The temperature of pulverizing mill abrasive dust is controlled at subzero 38-41 ℃ under the described cold condition.

Claims

1, a kind of sand of moulding is characterized in that the described sand of moulding is major ingredient with the PS polystyrene, adds the calcium cpd of adjusting proportion and an amount of auxiliary material and is processed into; Its proportioning is the PS polystyrene of 84-88%, the calcium cpd of 11-15%, the auxiliary material of 0.04-0.07%; Its technology is followed successively by batch mixing, extrudes under extruding machine is heated condition and moulds bar, and bar is moulded in fragmentation in pulverizer, under the cold condition at the pulverizing mill abrasive dust, after vibratory screening apparatus screening or selection by winnowing under the wind condition is arranged.

2, the sand of moulding according to claim 1 is characterized in that described calcium cpd can be a lime carbonate, can also be calcium stearate.

3, the sand of moulding according to claim 1 is characterized in that described auxiliary material comprises the blue or green dyestuff of benzene dioxalic acid fat, hexanodioic acid fat, phosphoric acid fat and titanium, benzene dioxalic acid fat, hexanodioic acid fat, phosphoric acid fat proportioning equalization.

4, the sand of moulding according to claim 1 is characterized in that the blue or green dyestuff of described titanium can be that blue or green blue or titanium bluish yellow of titanium or titanium green grass or young crops are red, and the proportioning of the blue or green dyestuff of titanium is 0.001%.

5, the sand of moulding according to claim 1 is characterized in that in the described mixing procedure, and PS polystyrene and the calcium cpd with proportioning stirred 2-4 minute at normal temperatures earlier, and the auxiliary material that adds proportioning again stirred 55-65 minute.

6, the sand of moulding according to claim 1 is characterized in that described extruding machine is heated to be controlled at 200-250 ℃.

7, the sand of moulding according to claim 1 is characterized in that the temperature of pulverizing mill abrasive dust under the described cold condition is controlled at subzero 38-41 ℃.