Knowledge

One of the main causes of higher production costs is the excess waste materials produced during hot runner start-up and temperature stabilization. There will be a lot of degraded and discolored waste

Nozzle tip temperature is the terminal core control point that connects the flow channel and mold cavity among all the temperature control points of hot runner systems. It directly determines molding

All anomalous temperature states will immediately cause a number of production risks in injection molding production employing hot runner systems, including product quality flaws, waste from raw mater

In order to achieve a balance between high strength, outstanding toughness, and exceptional wear resistance, H13 material performs best overall when its hardness is between 48 and 52 HRC. It works wel

For H13 material with a hardness of 48–52 HRC, the ideal tempering period is ≥2 hours each tempering cycle, repeated twice. For every 25 mm of effective thickness, the tempering time for thic

The hardness of H13 is stable at 48–52 HRC within the tempering temperature range of 550–600°C, according to the hardness curve after tempering. Two tempering operations can produce th

After tempering, the specific hardness data for H13 material is usually steady between 48 and 52 HRC. The measured hardness may be carefully regulated within 49~51 HRC with a single-piece range of &le

After the second tempering and cooling to room temperature, the H13 material achieves stable hardness. Depending on the thickness of the workpiece and the cooling technique, the full operation typical

After tempering, the hardness of H13 material often does not recover. However, residual stress may not be completely released if the process is done incorrectly (e.g., with only one tempering or inade

For H13 steel, tempering temperatures typically range from 550 to 600°C, with 580°C ± 5°C being the ideal value. This temperature range is the standard process parameter for hot wor

In order to guaranty stable microstructure and consistent hardness, the core of the H13 material tempering curve is held at 550–600°C for at least two hours, completing two tempering cycles

Information on the temperature-hardness connection is needed to plot the tempering curve of H13 material. Several sets of tempering temperatures and accompanying hardness values are acquired through t