1000kg lock shaped weight (1 ton cast iron material)

1000kg lock shaped weight (1 ton cast iron material)

Usage: This product is suitable for various weighing instrument calibration, port, and electronic belt scale calibration devices. It is used for the calibration of electronic scales, iron scales, electronic flat scales, elevators, and other industrial scales to ensure the accuracy of the scale body

1kg to 10kg cast iron weights are suitable for calibration of small range electronic scales or elevator testing

20kg cast iron weight is suitable for calibration of small range electronic scales or elevator inspection

25kg cast iron weight suitable for calibration of small range electronic scales or elevator inspection

50kg cast iron weight is suitable for calibration of electronic scales ranging from 50kg to 300kg or elevator inspection

100kg cast iron weight is suitable for calibration of electronic scales ranging from 100kg to 500kg

200kg cast iron weight is suitable for calibration of electronic scales ranging from 200kg to 1000kg. 500kg cast iron weight

1 ton cast iron weight is suitable for calibration of large weighing scales ranging from 1 ton to 200T, or for use as a counterweight

2 tons of cast iron weights are suitable for calibration of large weighing scales ranging from 5 tons to 200T, or for use as counterweights

5-ton cast iron weights are suitable for calibration of large weighing scales ranging from 10 tons to 200T, or for use as counterweights

10 ton cast iron weight is suitable for various weight applications such as shipyard weight, steel mill weight, crane weight, and crane weight

A physical measuring tool with a given mass and specified shape. Used for calibrating scales and measuring on scales. Weights must be combined with scales or scales to determine the mass of other objects, so they are a subordinate physical measuring tool. Cast iron weights, cast iron weights are cast as a whole using advanced vacuum casting method, with good surface smoothness National measurement of cast iron weights, specializing in providing various types of cast iron weights, designed for safe operation and production testing The weighing brand has an accuracy level of M1 to M3 as specified by OIML, with specifications ranging from 1 kilogram to 5 tons

Cast iron weight grade: M1

Cast iron weight specification: 1 kg、2kg、5kg、10kg、20kg、25kg、50kg、100kg、200kg、250kg、500kg、1000kg、2000kg、3000kg、5000kg（ Other specifications and sizes can be customized at an affordable price. Welcome. ）

Standard shapes of cast iron weights: customized in various non-standard shapes such as lock shape, cylindrical shape, flat plate shape, and circular rolling shape.

1000kg lock shaped weight (1 ton cast iron material) Methods of protection.

Firstly, it is necessary to ensure that the warehouse where the weights are placed is clean and dry, with a certain temperature and humidity.

The second is that when storing weights, wooden boards should be placed at the bottom and covered with cloth or film at the top to prevent direct contact with the ground and moisture and rust.

The third is to do a good job in daily inspection and maintenance, and regularly observe and record Daily maintenance and upkeep are much more efficient than one-time maintenance that has been left unused for a long time. To prevent the further spread of rust on the surface of the weights, the cleaning should be repeated with cotton yarn dipped in engine oil until the surface is shiny.

Regularly check the accuracy of the weights, use a higher precision balance to weigh the processed weights, calculate the reduced mass, unscrew the screws on the weights, make up for it with tin wire, and then tighten the screws to prevent the weights from being inaccurate during use.

The general term for alloys mainly composed of iron, carbon, and silicon.

In these alloys, the carbon content exceeds the amount that can be retained in the austenite solid solution at the eutectic temperature.

Cast iron is an iron carbon alloy with a carbon content greater than 2.11% (usually 2.5-4%). It is a multi-element alloy mainly composed of iron, carbon, and silicon, and contains more impurities such as manganese, sulfur, and phosphorus than carbon steel. Sometimes, in order to improve the mechanical, physical, and chemical properties of cast iron, a certain amount of alloying elements can be added to obtain alloy cast iron.

As early as the 6th century BC, China began using cast iron, almost 2000 years earlier than European countries. Until now, cast iron remains one of the important materials in industrial production.

1、 According to the different forms of carbon in cast iron, cast iron can be divided into

1. Except for a small amount dissolved in ferrite, the remaining carbon in white cast iron exists in the form of cementite, and its fracture surface is silver white, hence it is called white cast iron. At present, white cast iron is mainly used as a raw material for steelmaking and as a blank for producing malleable cast iron.

2. Grey cast iron contains all or most of its carbon in the form of flake graphite, and its fracture surface is dark gray, hence it is called grey cast iron.

3. A portion of the carbon in cast iron exists in the form of graphite, similar to gray cast iron; The other part exists in the form of free carbides, similar to white cast iron. The black and white spots on the fracture surface are called ductile iron. This type of cast iron also has significant hardness and brittleness, so it is rarely used in the industry.

2、 According to the different forms of graphite in cast iron, cast iron can be divided into

1. Graphite exists in the form of flakes in gray cast iron.

2. Graphite in malleable cast iron exists in a flocculent form. It is obtained by high-temperature and long-term annealing of white cast iron with a certain composition. Its mechanical properties (especially toughness and plasticity) are higher than gray cast iron, so it is commonly referred to as malleable cast iron.

3. Graphite exists in the form of spherical shapes in ductile iron. It is obtained after spheroidization treatment before pouring molten iron. This type of cast iron not only has higher mechanical properties than gray cast iron and malleable cast iron, but also has a simpler production process than malleable cast iron. Moreover, its mechanical properties can be further improved through heat treatment, so its application in production is becoming increasingly widespread.

When purchasing cast iron weights, the specifications, accuracy, and intended use of the weights are prerequisites that you must communicate with the manufacturer in advance. However, the material used for the weights during the manufacturing process by the manufacturer determines the quality of the product. Firstly, pay attention to the size of the cast iron weights; Secondly, pay attention to the accuracy level of the weights; Thirdly, pay attention to the detailed requirements for surface treatment of weights.

The purpose of weights is to calibrate electronic scales and serve as counterweights in experiments. Many weight manufacturers will try their best to reduce the production cost of weights in order to compete and attract customers with low prices. However, the design standards and accuracy of weights are far from national standards. Although price is an important factor when purchasing weights, product quality cannot be ignored.