Printing machinery maintenance products know more D (a)

Br> As we all know, the development of the printing industry has gradually changed from the relatively simple method of typographic printing to the now widely used offset printing and the ever-growing digital printing model. The conviction behind this type of development model is of course based on manufacturers' desire to continuously improve production efficiency and improve product competitiveness and quality in the market. Therefore, the printing and other processing machinery and equipment of various manufacturers’ production targets are continuously emerging in the market at a speed of one mile and a half. However, as these advanced machinery are heading towards production targets day and night, many operationally related "little problems" will follow, such as maintenance is an often overlooked part.

When machinery is damaged, manufacturers generally consider this to be due to normal operating wear. However, today's machinery is caused by high-quality alloy steel and should be usable for a long time. Afterwards, the manufacturers gradually began to discover that the maintenance materials team played an important role in maintaining the normal operation of printing machinery through constant payment of large maintenance fees and delaying production. In many maintenance materials, lubricant oil and its Related chemical products are relatively ignored. Probably due to the correct selection of these materials, there will be no immediate and adverse effects on the finished products produced by the manufacturers. Machinery equipment is often found to be problematic after being used for a long period of time.

Therefore, suppliers of these maintenance materials are required to:

1. Its products can reduce the number of mechanical damage and extend the service life of the machine;

2. Providing a product line with multi-functional design, in addition to adapting to more mechanical use requirements, it can also reduce unnecessary excess inventory for customers;

3. Instruct customers to avoid misuse of maintenance materials;

4. Make it easier for customers to simplify their purchasing procedures, thereby streamlining management procedures and saving valuable human resources;

5. To maintain adequate inventory of products, to save the time the manufacturers have to wait for the order of goods, and to avoid the risk of downtime caused by casual use of general "temporary substitutes";

6. To provide a long-term and stable supply channel through a reputable supplier network to meet the needs of customers around the world for quality products and services.

The maintenance materials for printing presses and related equipment include:

Lubricants - such as snow oil, chain tooth oil, pressure gear oil and so on.

Detergents - such as post-cleaning agents, ink roller cleaners, tubing, and oil cleaners.

Anti-rust agent—Used for the rust-proof lubrication of the cutter surface and cutter.

Grease characteristics and uses

In this issue, we will first introduce "grease" (snow oil). The type of grease can be roughly classified according to its hardness, feedability, dropping point, water resistance, and stability.

hardness

Hardness or penetration is a measurable characteristic that must be considered when selecting the proper grease. The hardness of the grease is determined by the number, the No. 0 is the softest, and then increases to No. 6 with No. 1 and No. 2. The hardness of No. 6 is the same as that of a soap bar. The mud in the garden is easy to shovel into the softer, difficult to shovel into the harder, the hardness of the grease is the same, it is based on the penetration depth of the grease from the drop of the cone gauge. The printing machine must be grease with the appropriate hardness according to the requirements of the printing machine manufacturer, otherwise the parts may cause insufficient lubrication or resistance.

Pressure transmission

Another characteristic of grease is the ease of pressure delivery; in the central grease system, two greases that are also easily pumped at room temperature, often have large pressure transfer properties at lower temperatures. different. The difference comes from the difference in the type and proportion of lubricants and soaps contained in the grease. Some printing machines and nailing equipments use the central grease supply system to lubricate the various components of the machinery. Therefore, it is extremely important to select an excellent pressure-feeding grease.

Dropping point

Because grease contains different soap bases, different greases melt with different temperatures. The dropping point is the temperature at which the grease changes from a semi-solid state to a liquid state; most of the calcium soap grease melts at 160-210°F, the sodium soap grease 350-350°F, and the lithium soap grease 350-400°F, so the high temperature It is better to use sodium soap or lithium soap. Nowadays, most printing machines have high speeds. Due to the higher number of bearing revolutions in motors, the bearing temperature also increases accordingly. The use of higher dropping point greases can enable high-speed friction bearings such as carbon pumps. "Bearings and more have better protection.

Water resistance

Regardless of whether it is in contact with water, some greases still need to perform its lubrication, so its water resistance is an important property. Calcium soaps and lithium soap greases are insoluble in water, and sodium soap greases are soluble in water, so they cannot be used as lubricants that may come into contact with water. The printing process requires mixed water, so some bearings must be protected with good water resistance grease, otherwise the bearing life will be greatly reduced.

stability

Some greases retain their original hardness even after they are added to the bearings, which means they have a high stability. The grease can soften after working for a period of time in the anti-friction bearing. If there is no good seal, it will flow from the bearing. come out. During the printing process, dusting is continuous and highly covered. If the stability of the grease used is poor, it will cause pollutants to easily enter the bearings and components, causing great damage to the printing press.

Traditionally, the design and production of grease has only focused on dealing with the singleness problems faced on machinery and equipment. Start with high temperature, high speed, high pressure or anti-wear. Since then, due to the requirements of the machinery manufacturers and the intensified market competition, the production of grease gradually began to move toward multi-functional direction. However, the general petroleum products have always had limits on their use and have not been able to effectively meet the high-speed development requirements of modern production equipment. Although it is not easy to select suitable lubricants, there are also some professional lubricant suppliers in the market that can provide professional data and long-term after-sales services to reduce customer errors in use and avoid wasting valuable time and money. Everyone may wish to listen more to the opinion of the industry and believe that it will help protect the good performance of the printing press.

Information provided by: Heli Industrial (Mechanical Lubricant Supplier)