Classified by hardness: soft mold, hard mold (quenched).

Classified by quality level: Level 1, Level 2, Level 3, Level 4

Classification by difficulty level: A-level, B-level, C-level, D-level

Classification by mold size: Extra large, medium, and small

Definition of hard and soft molds for molds

1. Mold hardness: soft mold, hard mold

1) Soft mold: The mold steel has been pre hardened and does not require quenching treatment, but the hardness is relatively low. The HB is below 400, and the production life is within 500000 cycles, making it widely used.

2) Hard mold: The mold steel is annealed and processed in two stages: rough machining and precision machining. After rough machining, it is quenched and the hardness is above HRC48 °. After rough machining, a machining allowance of about 0.2 should be retained, as the workpiece will deform after quenching to prevent precision machining from failing to meet the requirements of the workpiece. The production life is over 500000 to 1 million times, and small molds are most commonly used.

Mold quality level: Level 1, Level 2, Level 3, Level 4

First level mold quality

1. Mold: Must have one million or more mold opening times.

This is a first-class mold, and the customer requires it to be made with the best materials and accessories

The best mold.

2. The requirements for the first level mold are as follows:

(1) Detailed mold design (including computer graphics and materials);

(2) The hardness of the mold should be at least HB280;

(3) The mold core must be the least common hard HRC50, and all rows and accessories must also be hardened;

(4) To support the edge of the tube thimble;

(5) The row must have wear-resistant pads;

(6) The temperature control monitor should be installed in the mold, brother, or line according to feasibility;

(7) It is recommended to electroplate all cooling water channels with nickel plating to prevent rusting and facilitate cleaning;

(8) It is necessary to add a positioning lock on the parting line.

Secondary mold quality

1. Mold: Must have a mold opening frequency of 500000 or more.

This is a second level and advanced quality mold, which must use good materials and accessories, and have a certain standard (dimensional accuracy) for the tolerance of the mold. This mold also requires top quality.

2. The requirements for secondary molds are as follows:

(1) Suggest detailed mold design

(2) The hardness of the mold should be at least HB280

(3) Molds must have the least common hard HRC48, and all lines and accessories must also require heat treatment

(4) The temperature control monitor should be installed in the mold, brother, or line according to feasibility

(5) It is necessary to add a positioning lock on the parting line

(6) The following requirements will be determined based on individual requirements and at the time of quotation

Third level quality mold

1. Mold: Must have a mold opening frequency of 250000 or more. This is a general mold requirement, and production is also a medium production mold.

2. The requirements for the third level mold are as follows:

(1) Suggest mold design

(2) The hardness of the mold should be at least HB165

(3) The mold core must be at least HB280

(4) Except for the three basic requirements mentioned above, all other additional requirements are considered optional

Fourth level quality mold

1. Mold: Approximately 10000 beers required. This is a low production mold, generally there are no special requirements, but the quality of the mold still needs to be good and accepted by the customer.

2. The requirements for the fourth level mold are as follows:

(1) Suggest mold design

(2) The mold may be ordinary copper or aluminum

(3) Molded meat can be made of aluminum or steel with the consent of the customer

(4) Except for the three basic requirements mentioned above, all other additional requirements are considered optional

Mold difficulty: A-level, B-level, C-level, D-level

Grade A: Molds with complex structures such as multiple row positions and inclined top multiple parting, core pulling, and rotary core pulling.

Level B: There are multiple (two to four) rows of inclined top molds with complex structures such as two to three parting and core extraction.

Level C: A simple fine nozzle injection mold with one or two rows and a sloping top structure.

Level D: Large water mouth molds, two plate molds, molds with simple structures such as no row positions or sloping roofs.

Mold size: Extra large, medium, and small

Extra large: molds with a width of over 800mm.

Large: A mold with a width between 600 and 800mm (excluding 800).

Medium size: A mold with a width between 350 and 600 (excluding 600).

Small: A mold with a width of less than 350.