Pretreatment technology of hydraulic plunger workpiece

A hydraulic column and workpiece technology, which is applied in the field of pretreatment of hydraulic plunger workpieces, can solve the problems of low workpiece pass rate and poor processing effect

Inactive Publication Date: 2018-09-14
SANMEN TONGSHUN RIVET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the traditional production of hydraulic plunger workpieces is still in the semi-automatic stage, and the pass rate of workpiece processing is low, the processing effect of each link is not good, and even requires secondary cycle processing, so there is an urgent need for an efficient hydraulic plunger workpiece. Treatment process

Method used

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  • Pretreatment technology of hydraulic plunger workpiece
  • Pretreatment technology of hydraulic plunger workpiece
  • Pretreatment technology of hydraulic plunger workpiece

Examples

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Effect test

Embodiment 1

[0030] Such as figure 1 Shown, a kind of pretreatment process of hydraulic plunger workpiece, comprises the following steps:

[0031] 1.1) Pickling and descaling step: Hoist the raw materials, run them through the automatic line into the pickling tank for pickling, and obtain the descaling material, wherein the pickling tank is heated through a natural gas pipeline to ensure a constant temperature; the pickling uses Concentrated hydrochloric acid pickling, the concentration is 18% to 35%, the heating temperature is stable at 55°C to 65°C, and the treatment time is 100 minutes to 180 minutes; the standard after treatment is that the raw material has no scale. The current pickling is not heated, which makes the whole process very limited by the ambient temperature and reduces the pickling effect, especially in winter, the pickling effect is very poor. When using this scheme to set up natural gas pipelines for heating and temperature control, the pickling effect can be improved ...

Embodiment 2

[0038] Such as Figure 1 to Figure 13 As shown, a system for heat treating a hydraulic plunger workpiece includes the following steps:

[0039] 1.1) Pickling and descaling step: Hoist the raw materials, run them through the automatic line into the pickling tank for pickling, and obtain the descaling material, wherein the pickling tank is heated through a natural gas pipeline to ensure a constant temperature; the pickling uses Concentrated hydrochloric acid pickling, the concentration is 18% to 35%, the heating temperature is stable at 55°C to 65°C, and the treatment time is 100 minutes to 180 minutes; the standard after treatment is that the raw material has no scale. The current pickling is not heated, which makes the whole process very limited by the ambient temperature and reduces the pickling effect, especially in winter, the pickling effect is very poor. When using this scheme to set up natural gas pipelines for heating and temperature control, the pickling effect can be...

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Abstract

The invention discloses a pretreatment technology of a hydraulic plunger workpiece. The pretreatment technology of the hydraulic plunger workpiece comprises the following steps of step 1.1, pickling for descaling; step 1.2, residual acid removal; step 1.3, scale removal; step 1.4, phosphorization; step 1.5, saponification; and step 1.6, coarse wire drawing. The pretreatment technology of the hydraulic plunger workpiece is accurate in control and good in treatment effect.

Description

technical field [0001] The invention relates to the field of hydraulic processing, and more particularly to a pretreatment process for hydraulic plunger workpieces. Background technique [0002] At present, most of the traditional production of hydraulic plunger workpieces is still in the semi-automatic stage, and the pass rate of workpiece processing is low, the processing effect of each link is not good, and even requires secondary cycle processing, so there is an urgent need for an efficient hydraulic plunger workpiece. Processing technology. Contents of the invention [0003] The invention overcomes the deficiencies of the prior art and provides a pretreatment process for a hydraulic plunger workpiece with precise control and good treatment effect. [0004] In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows: [0005] A pretreatment process for a hydraulic plunger workpiece, comprising the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08C21D1/32C21D1/18C21D8/06C23C22/00B21C37/04
CPCB21C37/04C21D1/18C21D1/32C21D8/065C23C22/00C23G1/08Y02P10/20
Inventor 郑士旺李政冀杨统郑总
Owner SANMEN TONGSHUN RIVET
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