Views: 107 Author: Site Editor Publish Time: 2020-09-16 Origin: Site
Polyurethane foaming machine is a special equipment for infusion and foaming of polyurethane foam. As long as the performance indicators of polyurethane components (isocyanate components and polyether polyol components) meet the requirements of the formula. Through this equipment, uniform and qualified foam products can be produced. It is made of polyether polyol and polyisocyanate in the presence of a variety of chemical additives such as blowing agent, catalyst, emulsifier, etc., through chemical reaction to foam to prepare foam. Today, Hightop machinery has sorted out the four major items and purchasing skills to pay attention to when operating a polyurethane foaming machine.
Precautions for the operation of polyurethane foaming machine
1. To operate the polyurethane foaming machine, you must wear protective goggles, work clothes and work caps, and rubber gloves for polyurethane A and B combined materials. The working environment must be well ventilated, clean and hygienic. When the ambient temperature is high, the foaming agent in the polyurethane A material will partially vaporize and generate pressure, so the vent cover should be opened to discharge the gas and the pressure is released before opening the barrel cover.
2. When the polyurethane foaming machine has flame retardant requirements for the foam, the polyurethane foaming machine can use an additive flame retardant. The addition amount of the ordinary flame retardant is 15-20% of the weight of the white material, and the flame retardant is added to the polyurethane A material It must be stirred evenly before foaming.
3. During the manual foaming operation of the polyurethane foaming machine, the polyurethane A and B combined materials are accurately weighed in proportion and poured into the container at the same time, stirred with a stirrer above 2000 revolutions per minute for 8 to 10 seconds, then poured into the mold for foam Demoulding time depends on the product requirements, foam thickness and other conditions.
4. When the skin comes in contact with the combined polyurethane A material, use soap and water to wash it. When the polyurethane foaming machine operates the polyurethane B material (it is irritating), do not inhale its steam and do not splash it on the skin and eyes. When it reaches the skin and eyes, it must be wiped off with medical cotton immediately, then rinsed with plenty of water for 15 minutes, and then rinsed with soap or alcohol.
Polyurethane foaming machine purchase skills
1. Fully understand the type of foaming machine
The basic principle of polyurethane foaming machine is to introduce gas into the foaming agent aqueous solution, but different types of foaming machines introduce gas in different ways. For example, low-speed stirring type uses slow rotating blades to introduce gas, resulting in small bubble yield and low foaming efficiency; high-speed impeller type uses high-speed rotating impellers to induce air, bubble diameter cannot be controlled, and foam is uneven; high-pressure and medium-low-pressure types produce foam Fast speed, high efficiency, uniform and small bubbles.
2. Basic parameters of polyurethane foaming machine:
a. Output: The output is the foam production volume, which must be slightly higher than 20% of the foam volume required. In order to leave room, the foam production volume should be the approved calculation basis instead of the upper limit.
b. Installed capacity of polyurethane foaming machine: The installed capacity is the total installed power. This parameter has important meaning for calculating the adaptability of electrical circuits to the total power consumption.
Righteousness.
c. Polyurethane foaming machine size and foam diameter range.
On April 12, CNMC-E3 polyurethane spraying machine was loaded in the industrial park and will be exported to France soon.CNMC-E3 polyurethane spraying machine is widely used in industrial maintenance, tunnel, subway, waterproofing of road base, production of foam film and television props, pipeline
Due to the demand of the production scale, many manufacturers will choose small polyurethane infusion foaming machine to help products for foaming, which can be more convenient for bonding, and in the subsequent use of the process is also more convenient for maintenance. So what are the characterist
Spring Festival does not close, for this year's Spring Festival holiday, CNMC Machinery's Ali International Station store got a good start. We started the year with a salesman, we harvested more than 1.4 million in sales, of which the largest single order reached one million.CNMC Machinery is a subs
Polyurethane sprayers may require special coatings and construction parameters when working with certain specialized types of wood. The following are some common types of specialty woods:
In 2023, Rencheng District, Jining City, adhering to Xi Jinping's new era of socialism with Chinese characteristics as the guide, the high quality of investment and high level of opening up as the most direct and effective way to achieve high-quality development of the economy to grasp, go all out t
All family members.According to the provisions of the national statutory holidays, and in conjunction with the actual situation of the company, the New Year's Day holiday in 2024 is now made as follows.First, December 30th (this Saturday) to January 1st (next Monday) holiday, a total of 3 days.Janua
Spray gun: Responsible for ejecting the polyurethane coating, typically consisting of a nozzle, nozzle cap, nozzle throat, and trigger.Coating chamber: Provides a sealed environment to maintain the stability of the spraying process, preventing external impurities from entering. It is usually made of
The 134th Canton Fair will be held on October 15, 2023 in Guangzhou. Canton Fair is China's largest and most comprehensive international trade fair with the most complete range of commodities and the best turnover effect. Shandong Hightop Group, as a self-developed manufacturer and exporter, will di
All family members:According to the provisions of the national statutory holidays, and in conjunction with the actual situation of the company, now the Mid-Autumn Festival and National Day holiday to make the following arrangements: First, September 29 (this Friday) to October 6 (the next Friday) ho
Rigid polyurethane foam is widely used in Europe and the United States for building roofs, walls, ceilings, floors, doors and windows, and other thermal insulation materials because of its light weight, low thermal conductivity, good heat resistance, aging resistance, easy to bond with other substra
content is empty!